"Oh fuck!" Dan shouted as the light of Stacy's pink raygun finished with him.
"Huh," Stacy muttered casually as she lowered the smoking gadget to point away from her cousin, "It vaporized your clothes. Weird."
"And it turned me into a woman!!!" Dan shouted, strugging to cover his new nakedness.
"Well yeah." Stacy blinked, "Didn't you read the document I signed I sent you?"
Dan stared back at his cousin. He'd agreed to help her with some invention she was working on for some class. She'd sent him some fifty page long document and asked him to sign it. He hadn't read a single word of it.
"Damn it cuz! I feel so... weird..." Hair on his shoulders, soft skin everywhere, boobs hanging off his chest, and of course the pièce de résistance the new tender pussy flesh between his legs; Dan couldn't stop feeling it all, his attention drifting from one strange sensation to another, over and over again in a circle until he practically felt dizzy.
"I think I have something you can wear." She tossed him a long pink sweater.
Dan thought it wouldn't cover him, but when he got to his feet he realized how small he was now. He used to be a few inches taller than Stacy, but now she was a solid four taller than him. The sweater covered his boobs and made it down to about his midthigh. It was only barely better than being naked, and his pussy still felt exposed.
"What the hell Stacy!" Dan complained, his voice bordering on shrill when angry, "You trick me into coming here by pretending Gwen would be here, then you blast me with some gadget that takes away my dick! Well I hope you learned whatever the hell you wanted, now turn me back!" Dan had really come because he wanted a change to get to know Gwen a bit better. In addition to being Stacy's friend, Gwen had a bit of a reputation around campus as 'the blowjob queen' who gave out blowjobs like candy.
"Calm down Dan. Or Dani?" Stacy said, "Anyways I didn't lie to you. Stacy is here-"
As if on cue, a toilet down the hall flushed and a man entered the room naked from the waist down and sporting a massive boner, "-well I keep jerking it off but it just won't go down!" He said to Stacy, then turned to face Dan and froze.
"Gwen, you remember my cousin Dan." Stacy introduced them.
"Woah shit, your gadget works on dudes too!?" The man - Gwen - said. "Does she have a permanent lady boner to match this thing?" She pointed at her erect cock.
"I don't know. It vaporized her clothes. It didn't do that for you." Stacy shrugged, "Dan are you turned on?"
Dan balked at the question. He did not like them talking about him as "she" and "her". Between his legs felt awfully strange. "No?" He said, not really sure.
"Well, I guess there are different side-effects each way." Stacy said casually, "Now I gotta go to the lab to recharge this bad boy. It'll take a couple hours. Gwen, you should know that Dan here was asking me A LOT of questions about you." She winked, then marched out the door.
Gwen gave Dan a knowing smirk when they were alone and Dan blushed. "Let me guess. You wanted a blowjob."
"I, uh-" It wasn't an inaccurate statement.
"I know my reputation, but I'm not actually that easy." Gwen rolled her eyes, "I'll tell you what though. You give me a blowie right now, and I'll give you one after Stacy turns us back to normal."
"Umm..." Dan's heart was racing just thinking about it. But could he really... do it?
"Fine, three for one." Gwen countered, "You blow me right now, and I'll pay it back three times later."
It was just too good of an offer.
"OOooohh fuck that's good!" Gwen moaned as Dan worked on his first ever blowjob. He made eye contact every now and then, his mouth full of dick. He was embarrassed, but it also made him feel... More of the strange feeling between his legs, which was starting to become so intense it was a bit of an ache.
"Oh! No wonder guys are always asking me for this! MMmm, it's soooooo..."
Gwen's voice trailed off. Suddenly the cock in Dan's mouth twitched. Dan realized what was coming half a second too late. A torrent of salty spooge filled his mouth. Viscous and slimy, it stuck to his tongue and overwhelmed his senses. He thought he might drown, and his mouth was full, so he swallowed.
"OH FUCK!" Gwen laughed, "THAT WAS AWESOME!"
Dan felt it slide down into his stomach. He blushed deeply when he pulled away.
"Oh don't be embarrassed. You're a natural - I guess! I loved it anyways. You seemed to be kind of into it too. Did it turn you on? Sucking cock always turned me on." Gwen paused her rambling for a second, then looked down at her still hard dick, "Damn, even after that it won't go down! I can just keep going and going with this thing!"
Dan started at it and knew he wanted it. "Do you wanna fuck?" He asked sheepishly and Gwen grinned from ear-to-ear. Dan stripped and positioned himself over the heaven-facing rod. It was tricky lining up, he wasn't used to the angle. Then Gwen took control. Dan felt a sudden pressure, but it wasn't in the right place.
"Ow! Ow! No! I- NNGGHHH!" Dan protested briefly, then let out a deep, gutteral moan of satisfaction as Gwen claimed his ass.
"Oh! Anal! You're a dirty bird!" Gwen laughed, "NNMPH! Your ass is tight!"
"Ooooo! AAHH!" It hurt, but the pain was nothing compared to the pleasure. His pussy still ached with need, but there was something- "MMMnnn, FUCK! I'M-" Dan spasmed as a sudden spike of pleasure seized him.
"Shit! Did you just cum from anal!" Gwen gasped, but didn't relent. "Damn! Even I've never done that! You might be an even bigger slut than me!"
Dan was having trouble hearing her over the intense joy echoing all over his body with every thrust. A short while later Gwen nutted deep in his ass. When she pulled out, he felt a gush of cum rush out along with her glorious cock.
Dan was still tingling and spent and sore as he laid there recovering from the best sex of his life.
But still his pussy twitched, aching for it's turn. Dan rolled over and smiled at Gwen, "Your magic dick still hard? You've still got one hole left to go."
That time when they fucked, Dan screamed so loud the neighbors filed noise complaints.
=======
By the time Stacy had gotten back to the room, Dan and Gwen had half a dozen times. Neither of them were particularly interested in going back to their previous sex, OR having Stacy fix the "perpetually horny" side effect of her device.
Three weeks later and there pretty much wasn't a person on campus who hadn't heard "Dani" and "Greg" fucking in this or that public bathroom. They were clearly very happy with each other, but no one was as happy as Stacy. Neither of them knew it, but she'd been trying to play match maker for the two of them for months!