sexstories.com
Bi-sexual
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New Enceladus - chapter 8 by Limnophile
«Polygamous family on a new planet.»
Rated 85.1%, Read 5223 times, Posted Sun 10th of December 2023
Science-Fiction , Bi-sexual, Male / Females, Romance, Wife -
White Slut Training Academy... Orientation part 3 by Unknown user
Rated 85.1%, Read 39222 times, Posted Mon 27th of December 2010
Fantasy , BDSM, Bi-sexual, Black, Blowjob, Bondage and restriction, Consensual Sex, Cruelty, Cum Swallowing, Domination/submission, Exhibitionism, Group Sex, Humiliation, Interracial, Oral Sex, School -
Make Me the Slut I Want to Be, Bounty's Story by Michael Rhoden
«Sometimes rape can do strange things to people»
Rated 85.1%, Read 32766 times, Posted Mon 31st of July 2017
Fiction , BDSM, Bi-sexual, Cruelty, Extreme, Female/Female, Non-consensual sex, Oral Sex, Rape, Violence, Water Sports/Pissing -
SYLVIA'S JOB OFFER. by CecilBCK
«My lady lover wants to offer me a new, well paying job.»
Rated 85%, Read 22398 times, Posted Wed 27th of October 2021
True Story , Ass to mouth, BDSM, Bi-sexual, Blowjob, Bondage and restriction, Consensual Sex, Cuckold, Exhibitionism, Female Domination, Female exhibitionist, Gay, Group Sex, Hardcore, Male / Older Female, Males / Females, Older Female / Males, Oral Sex, Spanking, Threesome, Water Sports/Pissing, Written by women -
SEX-ALTERNATE UNIVERSE: CHAPTER 1 SEX SCHOOL by dickhardy2022
«Everyone in school is naked and having sex!»
Rated 85%, Read 15519 times, Posted Fri 7th of October 2022
Fiction , Anal, Bi-sexual, Boy, Cum Swallowing, Exhibitionism, Gay, Oral Sex, School, Virginity -
My friend and his horney wife by pandoras secrets
Rated 85%, Read 47412 times, Posted Thu 26th of January 2012
True Story , Bi-sexual, Cheating, Hardcore, Toys -
"BORROWED MAN" by blueheatt
Rated 85%, Read 20724 times, Posted Sun 27th of October 2013
Fiction , Bi-sexual, Blowjob, Consensual Sex -
My Weekend with My Daddy Pt.2 by Artie_Longer
Rated 85%, Read 61980 times, Posted Fri 20th of July 2012
Fiction , Anal, Bi-sexual, Consensual Sex, Gay, Incest, Pegging, Transsexual -
STELLA INTRODUCES MY PARTNER TO LESBIAN SEX. by CecilBCK
«I will be away for a week so my partner invites a girlfriend around for company.»
Rated 85%, Read 24714 times, Posted Thu 29th of November 2018
True Story , Bi-sexual, Cheating, Exhibitionism, Female/Female, Lesbian, Oral Sex -
My little secret 4 by Ashley Coxx
Rated 85%, Read 63388 times, Posted Wed 7th of February 2007
Fantasy , Anal, Bi-sexual, Body modification, Transgendered, Transsexual, Transvestite -
my brothers join in by pussypowerrules
Rated 85%, Read 69084 times, Posted Tue 11th of December 2012
Fiction , Bi-sexual, Black, Blowjob, Cheating, Group Sex, Incest, Older Male / Female, Threesome -
My Awakening - Part 6_(0) by Southern Boob Lover
«Karmen's awakening continues. She is learning there may not be any limites to her new found sexuality.»
Rated 85%, Read 12117 times, Posted Mon 24th of July 2017
Fiction , Bi-sexual, Black, Female/Female, Interracial, Masturbation -
I GATHER THIS IS JUST A FANTASY? by CecilBCK
«My lady Sarah and I love to stretch our sexual boundaries. She has a penchant for talented boys (read well hung, gender fluid boys. Like most men I like to please her in anticipation of something in return.»
Rated 85%, Read 3999 times, Posted Sun 7th of April 2024
True Story , Ass to mouth, Ass to pussy, Bi-sexual, Blowjob, Boys/Teen Female, Consensual Sex, Erotica, Exhibitionism, Extreme, Female exhibitionist, Group Sex, Hardcore, Male / Older Female, Males / Female, Masturbation, Older Female / Males, Oral Sex, Threesome, Voyeurism -
A Night Out to Remember by MrLascivious
«This is a fantasy written by both myself and an girlfriend of mine about a pair of "Friends with Benefits" that turn a night out into a night to rember.»
Rated 85%, Read 19998 times, Posted Tue 29th of December 2015
Fantasy , Anal, Bi-sexual, Bondage and restriction, Consensual Sex, Hardcore, Male / Females, Threesome, Toys -
The Man of Sin: Chapter 10 by Sage_of_the_Forlorn_Path
«Sophie makes the mistake of bringing the horror home with her.»
Rated 85%, Read 33267 times, Posted Mon 10th of July 2017
Fantasm , Anal, Ass to mouth, BDSM, Bi-sexual, Blowjob, Body modification, Bondage and restriction, Cruelty, Cum Swallowing, Discipline, Domination/submission, Extreme, Female/Female, First Time, Gothic, Group Sex, Hardcore, Horror, Humiliation, Incest, Lesbian, Male / Female Teens, Non-consensual sex, Oral Sex, Rape, Reluctance, Sado-Masochism, Slavery, Threesome, Torture, Toys, Violence, Virginity, Young -
Spring Break: Final by RICHDARKNINE
Rated 85%, Read 18270 times, Posted Wed 13th of August 2014
True Story , Anal, Bi-sexual, Black, Blowjob, Gay, Group Sex, Interracial, Older Female / Males, Wife -
Sex games 4 by resort
Rated 85%, Read 10050 times, Posted Fri 3rd of April 2015
Fantasy , Bi-sexual, Consensual Sex, Female/Female, Wife -
THE SEX RESORT. by CecilBCK
«I am Kate, my man Lucas and I are holidaying in a Sex Resort with the aim of ticking some items off our bucket list.»
Rated 85%, Read 51702 times, Posted Tue 24th of August 2021
True Story , Ass to mouth, Bi-sexual, Blowjob, Consensual Sex, Cuckold, Erotica, Exhibitionism, Female exhibitionist, Female/Female, Group Sex, Interracial, Lesbian, Male Solo, Masturbation, Mature, Oral Sex, Threesome, Voyeurism, Written by women -
Family Ties. by thegame07
Rated 85%, Read 40089 times, Posted Sat 2nd of May 2009
Fantasy , Bi-sexual, Consensual Sex, Oral Sex, Teen Male / Teen Male, Teen Male/Teen Female -
Cindy/Sindy by arcaine one
«Sydney finds herself to be the center of attention like never before.»
Rated 84.9%, Read 59067 times, Posted Fri 19th of May 2023
Fiction , Bi-sexual, Cum Swallowing, Domination/submission, Group Sex, Humiliation, Incest, Male/Teen Female, Non-consensual sex, Oral Sex, Reluctance, Young -
The Donner Affair by Criminal Kid
Rated 84.9%, Read 48760 times, Posted Tue 24th of April 2007
Fiction , Bi-sexual, First Time, Hardcore, Incest, Threesome, Young -
On the Stairs by Unknown user
Rated 84.9%, Read 18621 times, Posted Fri 9th of August 2013
True Story , Bi-sexual, Blowjob, Boy / Boy -
Neighborhood Obedience by Dirk Staton
Rated 84.9%, Read 41163 times, Posted Sun 14th of June 2015
Fiction , Anal, Bi-sexual, Black, Cuckold, Domination/submission, Erotica, Group Sex, Humiliation, Interracial -
introducing carrie by liz 22 nd
Rated 84.9%, Read 36675 times, Posted Sun 20th of May 2012
Fantasy , Bestiality, Bi-sexual, Cum Swallowing, Female/Female, First Time -
Hypno Slavers: The Dr. Emily Group by Aceith
Rated 84.9%, Read 55770 times, Posted Tue 21st of August 2007
Fantasy , BDSM, Bi-sexual, Domination/submission, Female Domination, Humiliation, Slavery -
A Smooth Party by smoothie
Rated 84.9%, Read 94605 times, Posted Thu 13th of July 2006
Fiction , Bestiality, Bi-sexual, Cum Swallowing, First Time, Incest -
A Family Betrayal Chapter 40 by Hawkrider
«Attitudes flare while Heath finds a old friend from college that helps teach Tiffany a lesson of the heart»
Rated 84.9%, Read 21774 times, Posted Fri 27th of May 2016
Fiction , Asian, Bi-sexual, Black, Consensual Sex, Interracial, Latina, Male/Female, Pregnant, Romance, Violence, Wife -
Me and Alice Part 2 by gblover
Rated 84.9%, Read 23088 times, Posted Thu 4th of March 2010
True Story , Anal, Ass to mouth, BDSM, Bi-sexual, Blowjob, Bondage and restriction, Consensual Sex, Cum Swallowing, Domination/submission, Female Domination, First Time, Foot or shoe fetish, Girls domination, Plumper, Reluctance, Teen Male/Teen Female, Toys, Transvestite, Virginity -
Straight Virgin Loses a bet and his Anal Virginity_(3) by Bi_cock_lover_89
«The true story of my failed attempt to get my gay classmate to leave me alone. Not only was this my first sexual encounter ever, but also my first time with another man and more ; )»
Rated 84.9%, Read 66381 times, Posted Mon 18th of September 2017
True Story , Anal, Ass to mouth, Bi-sexual, Boy / Boy, Coercion, Domination/submission, First Time, Gay, Group Sex, Male Domination, Reluctance, Teen Male / Teen Male, Virginity, Young -
The first time me and my best friend sucked each other’s cocks by Eyez13
«The true story of my first bisexual encounter»
Rated 84.9%, Read 32259 times, Posted Fri 2nd of February 2024
True Story , Bi-sexual, Blowjob, Boy / Boy, Cheating, Cum Swallowing, Drug, First Time, Gay, Interracial -
SARAH’S RETURN FROM QUARANTINE. by CecilBCK
«I have been in quarantine for two weeks. I am sex starved. I have told my man to organize an extra man for us - today.»
Rated 84.9%, Read 18264 times, Posted Sat 22nd of May 2021
True Story , Ass to mouth, Bi-sexual, Blowjob, Consensual Sex, Cuckold, Exhibitionism, Female Domination, Female exhibitionist, Gay, Masturbation, Mature, Older Female / Males, Oral Sex, Threesome, Voyeurism, Written by women -
I can't just say 'SIster you're fucking me' by cant.help.being.horny
Rated 84.9%, Read 62400 times, Posted Tue 21st of June 2011
True Story , Bi-sexual, Bondage and restriction, Boy, Consensual Sex, Female / Girl, Female solo, Female/Female, Incest, Male / Female Teens, Male / Females, Oral Sex, Teen, Teen Female Solo, Threesome, Written by women, Young -
MY MOTHER AND HER SISTER by CecilBCK
«I want to tell you all about the sexual relationships I enjoyed with my mother and her sister when I was a nineteen-year old boy.»
Rated 84.9%, Read 118872 times, Posted Wed 15th of November 2023
Diary , Bi-sexual, Blowjob, Boy, Cuckold, Erotica, Exhibitionism, Extreme, Female exhibitionist, Female/Female, Incest, Male / Older Female, Masturbation, Mature, Oral Sex, Reluctance, Teen Male / Female, Threesome, Voyeurism -
Caught with my hand in her panties by Bambam_ak
Rated 84.9%, Read 74412 times, Posted Mon 17th of March 2014
Fiction , Anal, Bi-sexual, Blowjob, Boy / Boy, Boys/Teen Female, Cum Swallowing, Hardcore, Humiliation, Non-consensual sex, Oral Sex, Teen -
Indoctrination by lawthor21
Rated 84.8%, Read 20040 times, Posted Fri 20th of March 2015
Fiction , Bi-sexual, Gay, Masturbation, Romance, School, Teen Male / Teen Male -
Family Matters.by: Teufelturm. by teufelturm
«A young couple marry against their family's wishes and take measures to ensure that they have sufficient funds to begin a new life together»
Rated 84.8%, Read 15171 times, Posted Sat 18th of November 2017
Fiction , Bi-sexual, Female / Girl, Female/Female, Group Sex -
Are you OK? by John Sheppard
Rated 84.8%, Read 64198 times, Posted Wed 18th of April 2007
True Story , Anal, Bi-sexual, Blowjob, Cum Swallowing, Incest, Teen -
FRANCOISE AND I TEST THE LIMITS OF SEXUAL PLEASURE. by CecilBCK
«As our relationship develops Francoise and I explore the boundaries of sexual pleasure..»
Rated 84.8%, Read 23637 times, Posted Wed 21st of November 2018
True Story , Ass to mouth, Bi-sexual, Blowjob, Cheating, Cuckold, Cum Swallowing, Erotica, Exhibitionism, Female exhibitionist, Female solo, Female/Female, Gay, Hardcore, Lesbian, Male / Females, Male Solo, Masturbation, Mature, Oral Sex, Threesome, Voyeurism, Water Sports/Pissing -
Used by son in law and daughter by german-rosi
«I was used as a sex toy»
Rated 84.8%, Read 87363 times, Posted Sat 5th of November 2016
True Story , Anal, Authoritarian, Bi-sexual, Black, Blowjob, Bondage and restriction, Consensual Sex, Cruelty, Cum Swallowing, Discipline, Exhibitionism, Extreme, Female / Girl, Group Sex, Hardcore, Humiliation, Incest, Male / Older Female, Mature, Non-consensual sex, Reluctance, Torture, Written by women -
JANET MY MOTHER IN LAW by CecilBCK
«Lots of men fantasize about sex with their mother-in-law. This is how my mother-in-law makes it happen.»
Rated 84.8%, Read 113448 times, Posted Sat 14th of October 2023
True Story , Ass to mouth, Bi-sexual, Blowjob, Cheating, Consensual Sex, Domination/submission, Erotica, Exhibitionism, Female Domination, Female exhibitionist, Group Sex, Incest, Male / Females, Mature, Oral Sex, Threesome, Voyeurism, Wife -
Free Blowjobs @ The Beach by Dave Speedo Evans
«A new friend of mine told me he gives out blowjobs to random guys at the beach. Of course I had to check this out for myself and it was hotter than I imagined.»
Rated 84.8%, Read 18417 times, Posted Thu 27th of May 2021
True Story , Bi-sexual, Blowjob, Boy, Cum Swallowing, Erotica, Exhibitionism, First Time, Gay, Group Sex, Hardcore, Oral Sex, Teen, Threesome, Voyeurism, Young -
SARAH’S VIDEO CLIP. by CecilBCK
«One of my long held fantasies was to have sex with two men. I accomplished that a few years ago. Then my new fantasy was to have a video clip made while I had sex with two men. This story is about how it happened.»
Rated 84.8%, Read 20907 times, Posted Mon 27th of July 2020
True Story , Bi-sexual, Black, Blowjob, Consensual Sex, Erotica, Exhibitionism, Female exhibitionist, Group Sex, Mature, Oral Sex, Threesome, Voyeurism, Written by women -
The Lumberjack by Robby Sr
Rated 84.8%, Read 48666 times, Posted Sat 22nd of August 2009
Fiction , Bi-sexual, Boy, Boys/Teen Female, Gay, Group Sex, Incest, Mature -
Wedding Orgy by Cindy Lane
Rated 84.8%, Read 95352 times, Posted Wed 4th of April 2007
True Story , Anal, Bi-sexual, Cum Swallowing, Group Sex -
Pi Pi Pi: Day One by kitkatkatlin
Rated 84.7%, Read 35313 times, Posted Fri 30th of March 2012
Fantasy , Anal, Bi-sexual, Black, Blackmail, Blowjob, Bondage and restriction, Boys/Teen Female, Consensual Sex, Cum Swallowing, Erotica, Exhibitionism, Extreme, Female / Girl, Female exhibitionist, Female solo, Female/Female, First Time, Group Sex, Hardcore, Interracial, Lesbian, Masturbation, Oral Sex, School, Teen, Teen Female Solo, Teen Female/Teen Female, Teen Male/Teen Female, Written by women -
MY MAN’S NEW BISEXUAL EXPERIENCE. by CecilBCK
«My man and I enjoy sex with a third or even fourth person around once a month. And Iove sex with an audience. This month promises to be very exciting.»
Rated 84.7%, Read 36042 times, Posted Thu 6th of February 2020
True Story , Bi-sexual, Blowjob, Consensual Sex, Cuckold, Erotica, Exhibitionism, Female exhibitionist, Gay, Group Sex, Lesbian, Masturbation, Older Female / Males, Oral Sex, Threesome, Written by women -
The Twin Peaks by veronikacreighton
Rated 84.7%, Read 30963 times, Posted Fri 6th of February 2015
Fantasm , Ass to mouth, Bestiality, Bi-sexual, Blackmail, Female / Girl, First Time -
HOLIDAY SEX. by CecilBCK
«My man and I enjoy sex with a third person on a regular basis. This time we have four some sex with lots of variations with another couple.»
Rated 84.7%, Read 48303 times, Posted Thu 21st of May 2020
True Story , Ass to mouth, Bi-sexual, Blowjob, Consensual Sex, Cuckold, Erotica, Exhibitionism, Female exhibitionist, Gay, Group Sex, Hardcore, Lesbian, Male/Female, Masturbation, Older Female / Males, Oral Sex, Threesome, Voyeurism, Written by women -
The Room Down The Hall [2]_(1) by computerblue
«Danielle explores her sexuality with the help of some friends.»
Rated 84.7%, Read 18207 times, Posted Mon 7th of December 2015
Fiction , Bi-sexual, Black, Group Sex, Lesbian, Oral Sex, Teen Female/Teen Female, Teen Male/Teen Female, Written by women -
TRC - Oni and the Farmer Ch. 1_(1) by BluDraygn
«A young farmer boy offers to become a servant to a large woman with blue skin and horns called an oni and finds out later he has mysterious abilities and a special affinity for the magic.»
Rated 84.7%, Read 26544 times, Posted Thu 7th of November 2019
Fiction , Anal, Bi-sexual, Blowjob, Body modification, Consensual Sex, Cum Swallowing, Erotica, Female exhibitionist, Female/Female, Group Sex, Male/Teen Female, Males / Female, Males / Females, Masturbation, Monster, Oral Sex, Pregnant, Teen, Threesome, Virginity -
My Car was Broken III by darren
Rated 84.7%, Read 38883 times, Posted Wed 11th of March 2009
True Story , Anal, Ass to mouth, Ass to pussy, Bi-sexual, Coercion, Consensual Sex, Cum Swallowing, Female/Female, Group Sex, Hardcore, Incest, Lesbian -
The Honeymoon Continues (part 6 of the Business) by wolfboyurges
«Bruce and Carla continue their honeymoon on weekends in Nevada, visiting ranchers and the brothel to augment their adventure.»
Rated 84.7%, Read 38889 times, Posted Thu 11th of February 2016
Fiction , Bestiality, Bi-sexual, Lactation, Prostitution, Wife -
Michael to Michelle 3- The Cuck lesson by SonicRush66
«After slowly transitioning to a sissy, Michael's wife and daughter throw a surprise»
Rated 84.7%, Read 18939 times, Posted Sun 12th of March 2023
Fantasm , Anal, Bi-sexual, Black, Blowjob, Cheating, Cuckold, Cum Swallowing, Domination/submission, Group Sex, Hardcore, Incest, Male Domination, Non-consensual sex, Reluctance -
harry potter- the woes of dumbledores army by XXXfaz50XXX
Rated 84.7%, Read 76596 times, Posted Sun 27th of September 2009
Fantasy , Bi-sexual, Boys/Teen Female, Domination/submission, Fan fiction, First Time, Humiliation, Incest, Pregnant, Rape, Reluctance, School, Teen Female/Teen Female, Teen Male/Teen Female, Teen Male/Teen Females, Threesome -
Taking My Daughter Sabine Ch. 4 by Eric the Red
«A father seduces his prudish daughter with a voyeuristic/exhibitionist plan.»
Rated 84.7%, Read 55299 times, Posted Mon 11th of December 2023
Fiction , Bi-sexual, Blowjob, Consensual Sex, Domination/submission, Erotica, Exhibitionism, Extreme, First Time, Hardcore, Incest, Male / Female Teens, Non-consensual sex, Reluctance, Virginity, Voyeurism, Young -
My first swing. by vampsarecool
Rated 84.7%, Read 33912 times, Posted Sat 5th of November 2011
True Story , Bi-sexual, Blowjob, Consensual Sex, Cum Swallowing, Group Sex, Males / Females, Oral Sex -
Naughty Stephanie Chapter 8 by Longfellows
Rated 84.7%, Read 50745 times, Posted Sun 25th of June 2006
Fantasy , Bi-sexual, Consensual Sex, Hardcore, Incest, Teen Male/Teen Females -
Big Daddy by kinkyrubber
Rated 84.7%, Read 77325 times, Posted Thu 5th of August 2010
True Story , Anal, Bi-sexual, Blowjob, Cheating, Cum Swallowing, Drug, Interracial, Transsexual -
Can't Have it All - Part 3 by megavine7
«Aly spends the day with Lindsey. He finds himself falling in love with her. However, his loyalty waivers when things don't go as planned.»
Rated 84.7%, Read 23055 times, Posted Mon 18th of November 2024
Fiction , BDSM, Bi-sexual, Blowjob, Cheating, Coercion, Consensual Sex, Cum Swallowing, Domination/submission, Erotica, Incest, Male Male/Teen Female, Reluctance, Romance, Spanking, Teen -
A Swinging Lifestyle, chapter 2 by pauldondero
Rated 84.6%, Read 33536 times, Posted Sat 16th of September 2006
True Story , Bi-sexual, Cum Swallowing, First Time, Group Sex, Lesbian, Oral Sex -
A surprise for brother 4 by lickable_chick
Rated 84.6%, Read 59858 times, Posted Wed 22nd of November 2006
True Story , Bi-sexual, Cheating, Incest, Oral Sex, Toys -
Vengeance by CandeeBliss
Rated 84.6%, Read 20550 times, Posted Mon 2nd of July 2012
Fiction , Bi-sexual, Bondage and restriction, Female / Girl, Hardcore, Incest, Male / Female Teens, Oral Sex, Reluctance -
Mates Rates by Big Red One
«An innocent remark sets off a chain of sexual events for a bunch of horny teenagers»
Rated 84.6%, Read 26268 times, Posted Tue 6th of June 2023
Fantasy , Anal, Bi-sexual, Boys/Teen Female, Exhibitionism, Group Sex, Teen Female/Boy, Teen Female/Teen Female, Virginity -
The Passion Of Two Friends by BeastKen4
Rated 84.6%, Read 66666 times, Posted Fri 1st of May 2009
Fiction , Bi-sexual, Boy, Boy / Boy, Erotica, massage, Masturbation, Voyeurism, Young -
CAW 10 - The Banger Sisters by Scottish-Fluffer
Rated 84.6%, Read 22635 times, Posted Thu 16th of February 2012
True Story , Bi-sexual, Black, Blowjob, Cum Swallowing, Erotica, Exhibitionism, Female / Girl, Female/Female, Group Sex, Interracial, Job/Place-of-work, Male / Females, Male/Female, Males / Females, Masturbation, Oral Sex, Reluctance, Threesome, Voyeurism, Written by women -
Vampire: Stories of days past 3 by Lynch.Stevens
Rated 84.6%, Read 10257 times, Posted Thu 18th of June 2015
Fantasm , Bi-sexual, Bondage and restriction, Erotica, Horror, Sado-Masochism -
The Test_(0) by Smeximan
Rated 84.6%, Read 21843 times, Posted Fri 29th of April 2011
Fiction , Bi-sexual, Female / Girl, Incest, Oral Sex -
The Dragon (S)Layers V. 1 Ch. 04 (The Cleric) by T-Silverwolf
Rated 84.6%, Read 11457 times, Posted Fri 31st of January 2014
Fantasm , Bi-sexual, Blowjob, Consensual Sex, Oral Sex, Threesome -
A WORLD OF THEIR OWN by bumboy
Rated 84.6%, Read 35433 times, Posted Sun 13th of July 2014
Fiction , Anal, Bi-sexual, Blowjob, Consensual Sex, Exhibitionism, Group Sex, Hardcore, Incest, Mature, Older Female / Males, Oral Sex, Voyeurism -
FOUR MEN BY THE POOL by CecilBCK
«My lady Sarah and me Roger, enjoy a very fulfilling sex life. We are in our early forties, gender fluid, and were currently planning our next sexual liaison.»
Rated 84.6%, Read 6870 times, Posted Thu 27th of March 2025
True Story , Ass to mouth, Bi-sexual, Blowjob, Boy, Cuckold, Erotica, Exhibitionism, Group Sex, Male / Older Female, Males / Female, Older Female / Males, Oral Sex, Voyeurism