Carl gets up and goes to the bathroom, and it's as a race horse is unrinating, a loud steady stream into the toilet. You and Billy look at each other.
"I'll fix him up until his ex gets here" you offer, as you walk back to your bedroom to get the dildo, before joining Carl, who is still in the bathroom.
Carl looks to his side as he hears someone enter, "It even feels great to pee."
You get down on your knees behind Carl, and stroke his dangling stretched scrotum. "Mmmmm, feels nice," groans Carl, who is about done. You slide the dildo into his asshole, pushing gently at first, and then with more force, sliding the entire shaft into his ass. With your grip on the shaft, you concentrate on your mental image of Carl.
You are concentrating when you are distracted by "Dude? What are you doing?" You look up to Carl, who is frozen stiff standing in front of the toilet, his eyes staring blankly foward. "Dude, why do I look possessed? Am I looking at me?"
Realizing you have mind linked with Carl, you quickly concentrate and break the link, having just remembered how to do that. Finished with Carl's changes, you slowly pull the now lubricated dildo from his modified tight rubber ass.
Carl regains the ability to move, and steps over to wash his hands and checks himself out in the mirror. You stand up and step next to him, both looking in the mirror. "So no breasts I see. I liked them a lot," mourns Carl as he slides his rubbery hand across his male human chest.
You say, "For tonight, just the waist down. We don't know how she will react."
Carl raises his two rubbery spandex hands to the mirror, "Missed a spot or two?," asks Carl.
You smile, and whisper to Carl "I think you will like your modified hands, and so will your ex."
Carl flexes his hands, rubbing them together, picking at the rubbery fingers and his palms. You smile and take one of Carl's hands. He pulls away at first. "Let me show you," you say. Carl relaxes his arm and lets you take his hand and you move it to your crotch. Carl looks at you, wondering where this is going. You reach up with your other hand and motion for Carl to follow you. You go into Carl's room and llie down on his bed, then you pat the spot next to you, with Carl joining you. You then take his hand and put it to your vaginal opening. Carl makes a fist with his hand, and you grip his arm as you coat his fist with your slipperly vaginal lube. "Be slow, but push in your hand...and think about that horse cock you had earlier."
The rubbery spandex on Carl's hand grows toward his elbow, and what was once his hand is now a foot and a half shiny horse cock. You nod in approval as you feel his flared member enter you, pushing deeper until his elbow is at your pussy. "Now ram that into me until your too tired to."
Billy watches at the door, quite aroused at the scene. He studies Carl's new body and is mindful of his own lustful thoughts about your roommate as he gives some thought into a few future changes for you. Billy goes to get his own orgasm with the dildo as you and Carl enjoy the extended play your modified bodies enable.
Billy stands at the doorway with the dildo in his hand as he watches you. Carl's panting, his two arms exhausted. You smile at Billy, "I thought you would like it." Billy reaches over and reaches out his arm, which you take to get off Carl's bed.
Billy hands you the dildo, "My turn."
You nod, taking the dildo, as you walk out of Carl's bedroom. Billy slides his fingers between Carl's legs and strokes Carl's large red equine pussy lips and finger length fire red clit. Carl tries to push Billy's hand away, but is unable to. After Carl's new opening his fully ready, with a slow drool of rubber lube examping from Carl's pussy, Billy straddles on top of Carl, and puts his ready cock at Carl's opening, then slowly, but with a firm continuous motion, slides all the way into Carl. Billy works his modified rubber tentacle cock inside Carl with a constand g-spot stimulation, giving Carl multiple orgasms with little recovery or break inbetween.
Billy wakes you up in the chair you fell asleep in. Billy extends his tentacle cock nearly two feet, before turning it to your face. You lean forward, and take it into your mouth, closing your lips tightly then slowly pulling off. You enjoy the taste, like a faint salty apple. Billy doesn't let you suck him off for long, as he pulls his cock out of your mouth and back into his body, leaving no testicals or sheath, just a smooth patch with a nearly invisible slit.
You reach out and rub the slit area on Billy's crotch, "Very nice. Smooth, tight, shiny....and tastes great!," you say approvingly.
"Thanks. I got the idea from watching you and Carl. The way you made his body from the waist down just made me want to screw is brains out. He has no inhibition about anything, he makes it easy," says Billy, proud at his handywork on his own body.
"His ex should be here soon enough. She's always late. We can play off Carl's lead. She may be uptight, but she's got a more perverted mind than Carl. I think that is why they still hook up a lot," you say to Billy
You and Billy straighten and clean the appartment, with Carl helping once he figured out how to make his cock hands return to normal hands. They were all three drinking and waiting for the doorbell, when it rang aboug 30 minutes later than expected.