Before Matt could even properly respond his roommate had already pulled down his old underwear. “Oh wow hehe, it’s... pretty small.
Matt was red with embarrassment.
Jack quickly picked up on this “Um hey it’s ok though! It’s not the size of the tool, it’s what you do with it, am I right roomie? Plus what does it matter you got my big dick now. Let it all hang out!”
Matt slowly lowered the basket ball shorts Jack had previously been wearing. Damn, his new dick made an outline even when flaccid!
He slowly stuck his hand down his underwear and fished the huge thing out. It had quite the girth. Matt couldn’t believe anyone would even think to part with it, even for just a month (Jack said for like two weeks but they both knew a swap lasts at least one month.)
“Well go on man, start jerking that bad boy off! Let me start us off.”
Jack then started rubbing on Matt’s little cock. “Oh man it’s so sensitive, hmmmm oh yeah!”
Matt was getting hard just looking at Jack but jerking of this new monster is something he wanted to save for a more...private moment.
“Uh actually I’m good Jack, I’ll rub one later.”
“Ahhh! Oh god, sure-mmm- suit yourself man-shit!” Jack just blew his load right then and there.
“Aww man, it doesn’t last nearly as long as my old one, but it still feels sooo good. Thanks again for doing this man, Jess is gonna love this!
————
The next day the pair headed to face the school in their new bodies. Matt didn’t have clothes that fit his new form so he had to work with Jack’s wardrobe. Matt tried the best he could to mimic his old style and not stand out too much with what was available.
Jack owned one huge sweater that Matt borrowed. It was the only thing he owned that wasn’t an armhole tank top. He also wore some track sweats.
Jack on the other hand went back to the fraternity. His fraternity brothers were actually quite accepting of his new form, saying he had “balls of steel” to go a month in his new little body. His buds forced some of the lower classman members of the frat to donate some clothes that would fit Jack. He now wore some faded jeans and a letterman jacket that one if the guys accidentally shrunk in the wash.
Unfortunately no amount of hand-me-downs could prepare poor Jack for what happened later that afternoon. Sexuality tends to change with a head exchange. Most gay and straight swaps result in two bi individuals but it seems Jack struck out big time. He couldn’t get hard for his girlfriend...
His mind still thought she was hot but his little pecker had a mind of it’s own. The only reason he got hard when he first got Matt’s body was because another dude was in the room.
“It’s not as fun Jack because I can CONTROL you. Which is the entire point of why I wanted you smaller in the first place. Where’s the fun in throwing around a little guy if he’s not even aroused by it?!”
“But babe I still think you’re sexy, you gotta believe me!”
Jess looked down at her now shorter boyfriend. “Jack I’m being honest with you, ya fucked up. I know I wanted to have fun with some kinky dominatrx stuff but if you can’t even get hard for me, you’re worthless. Frankly Jack, without that or your old body yoinkt really doing it for me. Call me when the month is up so we can just go back to regular sex. Or better yet, hook me up with the nerd you gave your body to, I could probably have more fun with him that you at this point.
She then left the room as she slammed the door.
Jack felt awful. The poor guy really thought Jessica genuinely liked him, now here he was stuck with a puny body for the rest of the month.
It was worse because he was perpetually horny with constant thoughts of guys in his mind. “This new body really knows what it wants!” He thought.