Not sure how to post my own story.
I would like to collaborate with others. Especially the artists who can create the images in my mind.
Also I so not want to offend or break any rules as my story is X-rated.
********Please do not read below unless over 21 ****************
In my fantasy in the not too distant future, bioengineering and drugs have evolved bodybuilding into a sexual UFC competition.
Initially our warriors discovered that sexual stimulation helped to get their minds and bodies stimulated for a workout. Then actual sexual stimulus was used. Think how much more you can bench press or squat if you can time that one rep max attempt to when you reach an orgasm!
Thus sexual stimulation among Bi-Sexual and heterosexual training partners began.
But then in the future, this "hyper sexual stimulation" was combined with drugs and bioengineering. Mind control and "Zen" Tantric stimulation evolved into an underground "marital art".
The "hyper" stimulated bodybuilder and UFC competitors began to make super human growth of muscle a reality. The average size of a bodybuilder (male and female) grew to six foot tall, 565 pounds at 6% body fat. Those in the new "Titan" Class Division like the above model must attain a massive 800 pound body at no greater than 9% body fat.
But the sexual stimulation went beyond a private underground gym exercise.
Soon it became a fight club like competition were man on man and man on female mutually acceptable "robust" sex matches began to be used as "Cardio" and "endurance" training.
The Alpha position would not only use his (or her with strap on) core to pound the "Beta" but also would lift the "Beta" as the "Beta' would try to use leverage to weaken the Alpha's core or "damage" his member (or break her strap on).
Soon this endurance event became more and more an "impact" sport where the male member and strap on became the "weapon" used against the gluteus Maximus, sphincter for men and woman and clitoris and vaginal muscles in the case of women and the muscular abdominal wall as the "weapon" pounding all the way through the "Beta".......you get the idea.
In the image above, the female Sex (or F***) Warrior can pump her muscles and control blood flow to harden her abdominal and vaginal muscles to form a granite hard wall of muscle (Think Bruce Lee tightening his body) which is pitted against the massive hard, muscular striated "member" as the male warrior or female with strap on bangs into her from behind and into her core.
With each ponding impact her abdominal muscles will bulge and redden until her superior opponent damages her muscular mid section into a black and blue cramping and bulging mass.
Not shown in this photo is her abs. This warrior above has sustained damage to her lower "eight-Pack" pair. This may have been from a powerful Zen martial arts-like "Power Bang" from her opponent's club like rod, or from an "abdominal stretch tear" from another match in which her male opponent pumped her full of many, many gallons of heavy protein rich cum until her abs could no longer take the pressurized inflation. Or perhaps her previous opponent tightened his massive muscles and flexing his even larger quads cause the blood flow to inflate his "battering Ram" into a massive inhuman club until it grew and grew inside her like the Alien creature from the movie "Alien" bulging out of her tight core until her abdominal muscle fibers began to tear with the sound of stretching leather.
Or if she is stronger, as she appears to be, she can use her massive adductor muscles between her massive legs to apply crushing pressure to the invading "battering Ram" to slow it down or perhaps crush it. She will use her abdominal muscles and vaginal muscle to grip the "weapon" of her attacker and crush it as she articulates her individual abdominal muscle to constrict around the head of the "member" as it bulges out (again like the Alien in the movie "Alien") to snap it from its shaft, crush it or perhaps if she is truly a "Zen" master, sever it completely off the competitor.