Scott your new identical twin quickly drives you home, you talk on the way, and find out that Scott is actually bi. He talks about the party you are both going to, and how he's going to screw Sarah, and maybe some guys he's meeting there. This turns you on..
You reach home there's no-one home, but Scott drags you upstairs to his bedroom. Once there, he forces you onto the bed - "Sean, I know you're straight and I hope things haven't changed between us" he says.
He pulls off your polo shirt, revealing your heavy chest. He pulls at your cargo's and pulls out your dick, its already hard with all the attention, but he takes into his mouth. You think to yourself how weird this is Scott is basically sucking off a copy of himself, and he doesn't even realise. He slowly works your dick, you can feel the muscles in his throat massaging your dick - you realise he is no amature at this. You climax and shoot your load, he takes it all. He looks up at your face and smiles - "Just like old times huh Bro'?" Scott says.
He looks at his watch, "better start to get ready" he says - "Help yourself to any of my stuff bro'". You watch as Scott strips out of his gear, and goes to find his gear for the party. You still feel hot, and begin to play with the idea of going to screw Sarah, and maybe some other guys as well.
Scott returns, he's wearing a black tight shirt which shows off every muscle, and fits like a 2nd skin. He grabs the crotch of the black leather jeans, and says with a smile "Commando style". This is just to much and you realise that tonight you have to go as Scott.
You start to put together a plan - you ask him if he has any spirits to drink to get us in the mood for the party "Yeah - some Vodka in that draw". You take the bottle out and hand it to him, and he takes a big mouth full. Passing it back, you take a swig but you don't allow any into your mouth. You begin to talk with him trying to find out as much information as you can about the party and the friends he's arranged to meet. After an hour Scott is well out of it virtually unconsious, he had drunk almost a whole bottle.
You strip off your cargo's standing naked in front of Scott asleep on the bed, you look up at the mirror and study the face and body of "Sean", which really is a copy of Scott only a couple of months earlier (before he bulked up!).
You take the medallion from the pocket of the cargo's you were wearing, and grab a corner of the shirt that Scott's wearing, and rub the medallion hard. A couple of seconds pass, and suddenly you feel subtle changes taking place - you look at the mirror again, and you can see your hair growing, your upper body is begining to expand, your biceps enlarge. The changes although subtle age you a couple of months, and within a couple of minutes you are the new Scott.
You get on the bed and straddle the original "Scott", you pull at his shirt and begin to unbutton it.. within moments you're pulling it off his board back, you spot a new tattoo on the back of his shoulder and you look over your own shoulder and see that it's bee replicated on your own. You take a good smell of the shirt, and pull it over your own broad back, doing up the buttons the shirt begins to hug your body as it had done only moments before on the real Scott. Next the leather jeans - you undo the buckle and zipper, and slowly pull off the jeans. You check out both Scott and your new dick - they both look fantastic. You pull on Scotts, no YOUR jeans. You tuck in the shirt and zip/buckle up the jeans.
You check your new self out in the mirror again, a perfect discuise for the night ahead. You look down at the original, sill asleep - using your new strength, you pick up Scott and take him to the bathroom, and lay him in the bath. You grab a couple of neck ties and bind his hands and legs, finally sticking a pair of socks in his mouth. AS youwalk out you splash some of Scotts aftershave on, and put on some sock and shoes.
Grabbing Scotts keys and wallet, you check out the muscular stud in the mirror and walk out the door. You jump into Scott's pickup and drive to the party..