Sort by
Relevancy

Free Stories

100%
A Perfect Pandemic: A Transsexual Transition in a Troubled Time
A Perfect Pandemic A Transsexual Transition in a Troubled Time A Novelette by Alexandra Rios Text Copyright Reserved © August, 2021 Dedication Transgender Day of Remembrance is a solemn occasion. I am offering “A Perfect Pandemic” for free as an antidote to the fear, phobia, discrimination, d... Read full Story
the greatest liar 2021-11-16 6,584 Teen (18+) Crossdresser Group Sex Big Tits Bareback Creampie Big Cock gangbang domination Guy Fucks Shemale Interracial double anal webcams
100%
Oneness with the bodies
many years went into just fantasizing being with shemales. I was getting hornier day by day to try it out. But being in a relationship there was hardly any room or time for it. I once experienced it in bangkok and confirmed that I really can do it and actually love it. One day suddenly it was br... Read full Story
zyankhaan786 2023-05-30 6,895 Group Sex Bareback Shemale Fucks Guy Big Cock domination big ass cum in mouth double anal
100%
I fucked the hotel handy man and he had a monster cock
I was on vacation in a new town and decided to stay at this new hotel. I heard it was the best and the location was close to some sites I wanted to explore. I enjoyed my stay there, especially one evening when my air conditioner stopped working, and the hotel guy came to fix it. He looked so hot tha... Read full Story
Madison Heights 2023-09-05 7,471 anal ass Big Tits Cumshot Bareback Creampie Fetish Uniform piss Ass to Mouth cum in mouth monster cock watersports
50%
C'EST LA PATRONNE ⚧️ ⚧️
Le rêve est mort. L'écriture était ma passion, mais cela n'a jamais servi à rien. La réalité a une mauvaise façon de vous rattraper, déchiquetant vos désirs dans son sillage. Ce cycle d'épargne et de vie de ces économies s'est progressivement révélé intenable et maintenant, à vingt-cinq ans, j'ai... Read full Story
Femboy 2021 2023-03-30 1,772 Big Tits Cumshot Creampie Blowjob Big Cock domination cum in mouth analsex femme plus âgée Futanari futa sur femme
50%
La bonne chair masculine…
La bonne chair masculine… La brise caressait mes mamelons gonflés me donnant des frissons agréables. Les deux verres de Riesling avaient également contribué à mon excitation. Mon entre-jambe brûlait comme si le soleil qui disparaissait avait soufflé toute son énergie thermique dans mon intérieur... Read full Story
hippocampus_171 2023-04-23 1,369 anal Small Tits Amateur Creampie Blowjob Mature small cock big ass feminization cum in mouth gaycd virile
50%
eromène contre vieille pétasse
Une eromène baise une vieille pétasse Lorsque je levai la tête pour découvrir à qui appartenaient ces mains de mannequin qui me servaient, j'ai été surpris de tomber sur un girly-boy. "Autre chose" sourit-t-il/elle en traînant ses longs doigts vernis incolores sur la nappe. Je n'ai pas pu m'... Read full Story
hippocampus_171 2024-11-09 202 anal Small Tits Amateur Creampie Sex Toys Mature small cock big ass sissy femboy Ass to Mouth cum in mouth teen (18+)
75%
Rebound
My story is nothing new, like most girls who used to be boys I knew from an early age that I was different to all my school friends. My dad was a thug of a man, who enjoyed the physical battle of the rugby pitch as much as the post match booze up, but I took after the mother who died giving birth to... Read full Story
shemale lover 2011-11-25 6,535 anal Creampie oral
100%
Man or Mandy? Part 2
I woke in the morning snuggled into Mandy's back, my arm around her. I moved my hand up and touched her cheek, her skin was so soft. I was letting my thought wander to the events of last night. I still couldn't believe that I had enjoyed sucking a cock. Mandy started to stir, rolling onto her bac... Read full Story
shemale lover 2011-11-26 2,260 anal Creampie Big Cock
100%
Florida TG Experience
I had known Jan from High School, we always had an attraction for each other but were dating someone else or married at the time. Jan had actually married a friend of mine and I was envious of course. She at that time had sandy blonde hair, and a body to die for. One evening we had them over for dr... Read full Story
Jon Paul 2018-08-13 11,651 Group Sex Big Tits Bareback Creampie Blowjob blonde Asian Ladyboy Shemale and Girl Guy Fucks Shemale Ass to Mouth cum in mouth double anal
100%
The Girl Next Door Ch. 02
derezzed Chapter 2 – Taking the Next Step Into Depravity Michael hardly got any sleep that night. When he did his dreams were filled with images of Jenny and her large penis. He tossed and turned in frustration. As he rolled over for what felt like the thousandth time he was blinded by the s... Read full Story
Gwapo67 2022-05-13 5,700 Bareback Creampie Guy Fucks Shemale cum in mouth
100%
spending the whole weekend as a sex slave
i met a dirty old man who owns run down motel he has put me in what he calls the honeymoon sweet im dressed like a cheap $1 whore. ive bean fucked by 12 different men so far i dont even know what they look like as i have a blind fold on load me he ties me up before they come in they load me up on po... Read full Story
sissypaulslut 2024-11-04 1,113 anal Crossdresser Amateur Group Sex Big Tits Bareback Creampie Blowjob blonde Big Cock gangbang Sex Toys Ass to Mouth
60%
The Greatest Liar, Date With The Devil
The Greatest Liar, Trans Erotica With A Purpose © Alexandra Rios 2019, all rights reserved Disclaimer This is a work of fiction. All characters (including the narrator), firms, business entities, organizations, teams, products, medical providers, medicines, governments, government officials, c... Read full Story
the greatest liar 2019-08-20 4,567 Big Tits Bareback Creampie Guy Fucks Shemale
100%
sex-agenarian's onanic lust
An onanic lust of a sex-agenarian that I am; I'M IN BIG HEAT; it's the season of bodily reunions in nature... I'm like an elephant(e) waiting to be satisfied. My cloaca is starting to titillate at the mere sight (look hah!) of a guy's swollen crotch on the street... I activated all my sensors to sa... Read full Story
hippocampus_171 2024-03-09 4,807 anal solo Amateur Masturbation Creampie Sex Toys Mature small cock
50%
1er rdv avec mon amant
Cela débute un jour quand dans une soirée il me raconta qu'il aimait bien les hommes, avec une consomation d'alcool abusive il me raconta ces histoires ses rencontre, nous en restons la, un soir je décide de me rendre chez lui il avait un petit studio en ville je tape à sa porte il m'ouvre je rentr... Read full Story
Micheline trav 2024-10-29 186 anal Stockings Crossdresser Big Tits Cumshot Blowjob Big Cock Lingerie Guy Fucks Shemale Sex Toys big ass sissy cum in mouth
100%
I Give Up
The following story is the first of four parts of a tale that explores the theme of transformation. It is thematically similar others that I have submitted but has a larger narrative arc. I hope you enjoy reading the first portion, Act One & Two. I continue to work on better editing and someone h... Read full Story
ASSEaster5678 2018-09-14 9,619 Cumshot Bareback Shemale Fucks Guy Big Cock Ladyboy
91%
The New Housemate's Secret
https://chyoa.com/chapter/Introduction.150836 The New Housemate's Secret How will you discover the hot new tenant's secret? Chapter 1 by Bauer1 The doorbell rings, a soft knocking accompanies the bell to break the silence of the house. You look up from your laptop nestled snuggly in your la... Read full Story
Acche 2019-04-04 22,498 Big Tits Cumshot Creampie Shemale Fucks Guy Blowjob Big Cock Guy Fucks Shemale handjob titfuck titjob cum in mouth
91%
My wife found out I also love cock
Even though I've been a tranny lover since I was 18 I ended up marrying Barb she had a set of tits and an ass built for speed. I never told her about my past nor did I pump her for her past. We had been married for a couple of months when I got that need for big black cock again so while Barb slept ... Read full Story
In Need Of Some Huge Black Cock 2019-04-30 9,778 Stockings Big Tits Creampie Big Cock cum in mouth double anal
66%
intimate Cousins
My favorite cousin and first lover, Billy, was just released from prison and I was anxious to see him. I am ecstatic that he is out, and I am thinking about all the past fun we had as I prepare to revisit those good times. Tommy knows all about my relationship with Billy and he understands my need t... Read full Story
Regina10 2022-05-13 6,518 Stockings Crossdresser Cumshot Masturbation Bareback Blowjob Big Cock Ladyboy Guy Fucks Shemale Ass to Mouth cum in mouth double anal
100%
Sarah die Nutzstute I.
Sarah hat sich wieder angekündigt , nachdem man jetzt weiß wie weit man mit dieser heißen Stute gehen kann, packe ich ein paar Sachen in meine Tasche und mach mich auf den Weg ins genannte Hotel ! Locker in Jeans, Polo , Pulli und Sneakern klopfe ich an, höre wie die Stute an die Türe stöckelt, bi... Read full Story
Sarah Diener 2023-09-14 2,944 anal Stockings Big Tits Bareback Creampie Blowjob blonde Big Cock Lingerie domination big ass Ass to Mouth cum in mouth
100%
Fucked By BBC pt 2
It has been 3 weeks since I became a bbc cocksucker, since then I have learned to enjoy the taste and the feeling of a cock in my mouth. I have also learned the guys name on the 2nd day of being used by the guy, his name is Darren. One day while I was at Darren's giving him a blowjob he tells me ... Read full Story
kinkyguy18 2023-11-03 7,156 Group Sex Bareback Creampie Blowjob Interracial sissy Ass to Mouth cum in mouth
75%
Flowers in the Heart
Chapter 1 "Hey Scott, Fauna kind of likes you," Jenna said, snickering. "Hey Jenna, it hard to hear yourself over that echo?" Scott said as he caught the football, and then heaved it back to Ronnie. "Huh?" Jenna asked, puzzled. "Yeah, your head up your ... Read full Story
shemale lover 2012-11-11 10,864 anal tranny Cumshot oral
100%
First Cross-dressings Loosing Anal Virginity
It happened after a month of me blowing that guy twice...I mean I was so damn excited and was craving for his cock....I was blowing him every weekend in his car after the school...his cock was almost 7 inches and was so thick and that I like so so much the gagging he was giving everytime, that chock... Read full Story
Trapbomb1 2022-07-29 7,337 Teen (18+) Crossdresser Bareback Creampie Blowjob Big Cock virgin virginity sissy cum in mouth double anal sissy slut virgin ass
100%
Surprise Ending (Part Three)
I rolled my dick around her hole to spread the precum off it and lubricate it. The feeling was sensational and I couldn't spend much time easing my way in --I shoved right in the the hilt in one steady push. Karla practically jumped off the couch and screamed. I thought maybe I had hurt her (I am... Read full Story
Chantel13 2022-08-23 4,731 Crossdresser Amateur Group Sex Cumshot Outdoor Creampie Shemale Fucks Guy Big Cock Shemale and Girl redhead Guy Fucks Shemale Ass to Mouth
100%
delicious virile male flesh
Tasted delicious virile male flesh… The breeze caressed my swollen nipples giving me pleasant shivers. The two glasses of Riesling had also contributed to my excitement. My crotch was burning as if the disappearing sun had blown all its thermal energy into me. Under my fine lace panties, purple o... Read full Story
hippocampus_171 2023-04-23 5,482 anal Small Tits Amateur Creampie Blowjob Mature small cock big ass feminisation cum in mouth gaycd virile
100%
Big cock heaven.
I live in Vancouver and saw a beautiful trans escort online and couldn’t resist setting up a meeting. I met her at a hotel and she was just as beautiful in person as online. She was Asian and had the most wonderful big tits and ass. Her cock was a solid 8 inches, uncut with a big mushroom head, whic... Read full Story
Eyecandy64 2024-02-06 6,971 anal Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Asian
50%
An alumni gathering like no other; 2/2
... I opened my eyes, sobered up from the alcohol and my lust. Simo had already left. I had to get ready for the party, and I had to do it like a man! BUT, slut that I am, to make my breasts more prominent under my dark purple tank top, I tightened a transparent strap around my waist. You never kno... Read full Story
hippocampus_171 2024-06-16 2,849 anal Amateur Creampie Blowjob Sex Toys Mature small cock big ass cum in mouth
50%
Al Fresco: An Erotic Sci Fi Tale
"Thank goodness for modern science," Ali said as she smoothed her tight black skirt across her shapely hips. The tall brunette turned this way and that in front of her mirror, admiring her taut, toned, and trim figure. Her hands moved up from her hips to cup the twin handfuls at her chest,... Read full Story
shemale lover 2012-09-19 7,559 Cumshot ass fucking oral sex cum swallowing
85%
My Awkward Phase
My Awkward Phase ©Alexandra Rios 2019 The greatest lie is that what happens in high school doesn't matter, because life begins in college. I pretended to agree, although I never believed it, for I was the world's greatest liar. Wannabees I was hanging out with my friends Quinn, Barb and Anne ... Read full Story
the greatest liar 2019-06-14 12,466 Small Tits anal sex Latina Masturbation Bareback Creampie Blowjob Big Cock transformation gangbang Shemale and Girl Guy Fucks Shemale Sex Toys Ass to Mouth cosplay hormones high school real life situations
100%
Lola Chapter 2
Lola Chapter 2: A couple? It wasn't as if we were together. We had jerked off together once, and of course we slept in separate rooms, but I slept restlessly that night. Dreamed something scary that I couldn't remember in the morning. I didn't have work scheduled that day so I took it easy. When ... Read full Story
BellaBeau 2023-10-05 5,891 anal Cumshot Creampie Guy Fucks Shemale Homemade latina Tgirl
100%
My story
Please don't hurt me, I whimpered softly. Oh no my Lil slut, mommy has no intention of hurting you but making your fantasy become real, she said. But your thing, its kinda big. I'm a bit scared, I said. Mmmmmm, don't worry baby. Mommy wants this to be so good that you become my steady, she said... Read full Story
Curious_billy 2024-02-03 6,999 anal Amateur Big Tits Bareback Creampie Shemale Fucks Guy Blowjob Big Cock domination Mature Homemade cum in mouth
100%
Regina's Vagina dreams
I think I wanted to be a female from birth. I once looked through a girlie magazine out of curiosity. I had impossible dreams and I longed to trade genitalia with them. I have always fantasized about my Vagina when I was younger. It was during those times that I would drift into my own private world... Read full Story
Regina10 2024-03-01 6,221 anal Big Tits Bareback Creampie Blowjob Big Cock Ebony gangbang Guy Fucks Shemale big ass cum in mouth double anal
100%
Young Hercules: Versatile Stud by The Fan
Prometheus Academy. It sat atop a hill, dominating the vast region of Thessaly, Greece. It was the most prestigious school in the area. The most famous men and women of the world came there to get their education. The sons and daughters of kings and queens, ... Read full Story
shemale lover 2011-12-01 3,644 anal Creampie jacking off
91%
Lake Surprise
After finals of my first year in college in a northern university, I was ready for some real relaxation back home in the warm south. During finals I had started thinking how nice it would be to borrow my brothers boat and hit the lake for a week. I talked my roommate into making the trip home ... Read full Story
shemale lover 2011-12-08 11,064 anal Group Sex Creampie
85%
Tits and Cock
I had always wanted to fuck a shemale. The idea of a hot chick with a huge thick cock really turned me on. I called an escort service and asked for a lady with something extra. About and hour and a half later my doorbell rang. I open the door and there stood a tall curvy beauty, must have been six f... Read full Story
shemale lover 2012-03-25 4,469 anal sex Big Tits Creampie orgasm jerking off huge cock
100%
Emily and Steve Part 1
As I pulled my cock out of Emily's ass and shot my load onto her flat stomach, where my cum mixed with the load the beautiful blonde cross-dresser had just shot from her throbbing cock a moment before, I thought to myself that work was suddenly going to be a lot more fun. My name is Steve and I w... Read full Story
shemale lover 2012-04-06 4,108 Crossdresser anal sex blonde
100%
My brother's biggest surprise!
Lilly did not like her new step-brother at all, Todd was the worst sort of punk, bad attitude, cocky, arrogant and he thought he was God's gift to women. His father had married her mother nearly a month ago, and Lilly hated it. He called her names like "teentwat","shitster" and ... Read full Story
shemale lover 2012-04-08 5,542 hardcore anal sex Creampie oral sex
100%
Fantasies Fulfilled
I enjoy crossdressing and do so when ever I can. About the only time I dress as a man is to go to work. I have been doing this since I was eleven years old. I love to have sex with a man as if I was a woman and really think I should have been born a girl. I think like a girl and naturally act like a... Read full Story
shemale lover 2012-05-26 4,741 anal sex Creampie Blowjob crossdressing
100%
Totally dominated
I was out walking one night, a walk i used to make with my girlfriend. We had just broken up a few days ago. I don't know why I was walking here again, the memories weren't good ones. She had cheated on me with my best friend. Anyways, I was walking this familiar path through the city streets when I... Read full Story
shemale lover 2012-10-27 6,261 anal Group Sex Cumshot Creampie Big Cock oral
75%
The dark elavator
I was working on a inportent computer tech. when this women send me a pc to pc message with a picture of a women say want to tast me baby. i look up and she says well how about it and winks i goto get lunch so i goto the elevator but it full. i dont want to take the red elevator its lights fliker... Read full Story
shemale lover 2012-11-18 3,237 anal sex sucking Creampie rimming
100%
Cheating Sissy Wife chapter2
My sweetheart Keith is back from his road trip and we were about to make up for lost time. He didn’t even want me to fix dinner. Instead he said that we would order pizza later. Meanwhile we started making out right there on the couch. We were both horny and anxious to get next to each other. I felt... Read full Story
Regina10 2020-10-26 5,238 Crossdresser Big Tits Cumshot Bareback Creampie Blowjob Big Cock Ladyboy Lingerie Guy Fucks Shemale pov Ass to Mouth
100%
Regina’s Double threat.
Hello guys, I recently ran into a former hater who was no longer the hater I had met years earlier. In fact, he had only treated me so horribly because of his own inner dark desires. When we met a few years ago at one of the clubs, he had been very abusive to me. He went out of his way to say hurtfu... Read full Story
Regina10 2022-02-08 3,444 Big Tits Cumshot Bareback Creampie Fetish Blowjob blonde Big Cock redhead Guy Fucks Shemale Ass to Mouth double anal
100%
The Seductive Seed of a Tranny MILF
The Seductive Seed of a Tranny MILF SugarandSalt Jackson got home and immediately curled up in bed. He didn't want to move for the rest of the weekend. He'd finally worked up the courage to ask a co-worker out at work. She politely rejected the invitation. Then later on in the day, Jackson spo... Read full Story
Gwapo67 2022-05-03 8,361 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Mature cum in mouth
100%
I got anal creampied at the beach!
As soon as we got onto shore, I knew it was the perfect place. The hot sun was beating down on us and my body was tense with anticipation. Finally, we were going to be alone out in the wilderness with nobody around and could enjoy each other thoroughly. My hunky date and his monster cock were going ... Read full Story
Madison Heights 2022-12-01 5,381 Cumshot Outdoor Creampie Fetish Blowjob Big Cock Ebony Guy Fucks Shemale public bbc massive
100%
Uncle sweet Lover
Uncle Barney called me this morning and wanted me to keep my evening free. He wanted to meet me at the motel with a surprise for me. I was so excited and could hardly wait. I had to decide on something to wear, but when I thought about it, I realized that I wanted to wear something special. He would... Read full Story
Regina10 2024-02-19 5,424 anal Crossdresser Big Tits Creampie Fetish Blowjob Big Cock Ebony Ladyboy Guy Fucks Shemale Mature big ass femboy
100%
Police House Call
My heart was beating a mile a minute when I heard the knock on my door. I was hoping that it might be Beau, or Larry, or if I’m lucky it would be Tom Cobb. He asked me to call him Tommy. I had been thinking about him recently. Bo and I had banged the night before, but I was as horny as ever. Larry w... Read full Story
Regina10 2024-04-19 4,092 Crossdresser Big Tits Bareback Blowjob Big Cock Ebony Guy Fucks Shemale big ass femboy cum in mouth
75%
Passion in the Rough
Tonight, I was searching in vain for a parking place close to the club, but unfortunately, I had arrived late and there were no empty spaces close by. I drove around and went down several streets in the same block until I found an empty spot. That was perfect I thought as I found a parking place and... Read full Story
Regina10 2024-04-27 3,977 anal Crossdresser Big Tits Outdoor Bareback Creampie Blowjob blonde Big Cock Ladyboy gangbang Guy Fucks Shemale
100%
Becoming the Neighbor's Wife
I like my neighbors and I am grateful for the way we look out for each other. Take Tony, the 60 year old, barrel-chested guy who lives alone in the house next to me. My garage faces Tony's house, and a couple of times last fall he came over to warn me that my garage door was left open. I thanked ... Read full Story
shemale lover 2012-04-20 7,259 anal sex Creampie fingering crossdressing rimjob
100%
Birthday Surprise
It has taken me months to plan everything. It hasn't been easy to make the arrangements without him finding out but I think I have managed to pull it off. I have planned what I think will be the perfect birthday surprise for him. Today, when he gets home he will find a note with instructions. Happy ... Read full Story
shemale lover 2012-06-20 4,879 anal sex Creampie Big Cock oral sex
75%
Frat Party
It was my first frat party. I had no idea how I wound up there. The liquor was flowing hard, and the rooms were packed. The guys were all football stars, hooting and chugging, and the girls were all skanks. I'm used to thinking of girls as dignified, delicate creatures. But these girls were screamin... Read full Story
shemale lover 2012-11-24 5,413 big dick anal sex Creampie
100%
Best night ever
Well the beginning of the story is i meet this absolutely drop dead gorgeous women at an alternative bar, she invites me back to her dorm for some fun little did i know what i was walking into. we get to her dorm room, the whole way here we could not keep our hands off each other, we finally unlock ... Read full Story
Tsunami777 2013-04-09 7,630 Group Sex Cumshot Creampie Big Cock
92%
The Girl Next Door Ch. 02 by derezzed ©
Chapter 2 – Taking the Next Step Into Depravity Michael hardly got any sleep that night. When he did his dreams were filled with images of Jenny and her large penis. He tossed and turned in frustration. As he rolled over for what felt like the thousandth time he was blinded by the sunlight that h... Read full Story
StevelovesTgirls 2019-06-11 12,964 Amateur Big Tits Blowjob Big Cock Guy Fucks Shemale
100%
From accidental trans porn addiction to a cum filled booty
One night when I was around 30 or so I was watching some porn, nothing unusual for a guy like me, aka a sex addict. Sex addiction is great if you’re Tiger Woods and swimming in poon, but for guys like me - regular, awkward, slightly handsome in a very boyish way, weirdos — it’s not that fun. We... Read full Story
CDJaneBooty 2022-04-01 10,873 first time Crossdresser Amateur Cumshot Bareback Creampie Blowjob Big Cock gay Homemade Ass to Mouth curious first time with a man
100%
Regina's scary, and sexy Blind Date
I had just finished doing my makeup, finally deciding which blush to use, and I thought I had some time for my meditation. However, Mr. Cobb was early. The gold minidress I wore showed enough legs, ass and tits to make any man horny, and the strappy tanned five-inch sandals, made me feel majestic ... Read full Story
Regina10 2024-03-18 5,297 anal Crossdresser Bareback Creampie Fetish Blowjob Ebony Guy Fucks Shemale big ass sissy Ass to Mouth cum in mouth
100%
Late Night Snack (Touch me in the morning)
I was awakened abruptly by someone banging on my door at 1am. At first, I thought it might be Harry, the man who replaced Mr. Cobb in my bed a few nights ago. He had been persistent and horny constantly. I think it was because fucking trans women like me was new to him and he hadn’t got enough of th... Read full Story
Regina10 2024-03-28 4,429 anal Big Tits Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Ebony Ladyboy Lingerie
100%
Sweet Encore
I was alone tonight and feeling just a bit paranoid as I listened to the soft music. The soothing sounds put me in a seductive mood, but It seemed that all my lovers were too busy for me, or they had other plans. Uncle Barney and my detective were probably home being dutiful husbands. Bo was under h... Read full Story
Regina10 2024-05-09 3,799 Crossdresser Big Tits Bareback Creampie Blowjob blonde Big Cock Guy Fucks Shemale big ass Ass to Mouth
50%
trans=demic
Trans-demic Chinese Flu Sam Wong read the email from Josh Epstein, the partner in charge of the fiendishly complicated real estate deal that had consumed the last three months of their lives. “You’re going to have to close this deal without me. I’m sick as a dog, and my wife just called an ambu... Read full Story
the greatest liar 2024-09-09 1,697 anal Small Tits Bareback Creampie Asian Guy Fucks Shemale small cock Ass to Mouth cum in mouth