"Here!” Jessica said holding up two women’s costumes with minimal clothing on both of them. You blushed when you saw them and said,”Uh... Jess are you sure about this?"
"What? It’s going to be one of THOSE parties with alcohol and lewd games, costume roleplay, you know," Jessica laughed handing over the dragon costume and starting to strip down and step into the Succubus one.
You blushed and stared seeing your girlfriend nude and she laughed when she noticed you,"See something you like pervert? Get yours on and let’s see how they look on us."
"Oh... uh.. y-yeah...." You replied, stripping down and putting on the costume, which felt weird. It was tight in some areas and baggy in others. This was definitely a women’s costume, and you sighed after putting on the tail and mask,"Jess I don’t thi-"
Suddenly you felt like something wasn’t right, and you reached for the zipper in the back but felt nothing back there, and what’s more was you felt... you? It was like you were touching your bare skin. Looking down you saw the suit was starting to stick to your body seamlessly, or worse you felt stuff underneath all shifting around. Your hips and ass felt like they were growing and testing the limits of the fabric, pushing up against it. Then your arms and legs in the costume started to look like ACTUAL dragon scales covering a dainty set of feminine limbs with clawed hands and talons.
"W-What’s going on?!" You shouted before you felt a tugging sensation in your crotch, two pops, and then a vigorous squelch before you felt an arousing sensation between your legs. You looked down and started breathing heavily, it was almost like you could see the maw on your mask move when you opened and closed it now. You then suddenly felt three new body parts on your body move and that you could even move them on your own. Turning around you saw that your wings and tail looked more realistic, mug like most of your body now.
You then felt a rush of horniness through your system, especially around your nipples and the plump foreign slit between your legs. You followed your instincts and started messing with your chest, feeling the flesh growing and swelling underneath the fabric and stretching against the costume before feeling like they were actually real. You moaned out with the voice of a sultry slutty woman as your IQ suddenly dropped, and you neglected to realize this change along with what other changes had happened and focused only on the pleasure.
Eventually you cried out, orgasming before feeling your juices spill out onto the floor. At this moment reality hit you, and your eyes went wide as you looked at your amply oversized breasts, squeezing them slightly then shrieked,"Aiiiiiiiiii!! I have boobies?!"
"Well I see someone’s had fun~" A seductive voice from behind you said and you looked back and saw a crimson skinned succubus with a badass vaginal tattoo of a pentagram, who was ass naked in the room.
"Uuuuuuh...." You paused, blushing not really recognizing the costume before Jess spoke up again,"It’s me Johnnny, you know, your girlfriend~"
"J-Jess?!" You shouted then blushed heavily and looked down at your body, unlike Jess, you actually had clothes on, although the bear minimal, a black bikini that barely covered your pussy and nipples, and you looked bound to slip out of your bra.
"I love the bod~ Is it me or were you hiding a secret from me about your uncle~?" Jess asked then giggled before offering her hand to you. You took her hand, allowing her to help you up, then looked down at your tits and screamed,
"Secret? What kind of secret? But like.... I have boobies!!"
You then felt Jess rub your sexually soiled panties and pussy, and you moaned softly. "You have a nice juicy cunt as well, and your breasts are bigger than mine, congratulations, how does it feel?" Jess asked then laughed and You blushed,"Weiiird, horny, hot.... I think...... right?"
"What’s wrong dearie~? You don’t quite sound like yourself," Jess replied then you blushed and said,"Well.... like I think.... I got dumber...er.... heh."
"Hmm.... what’s 9 times 9 Johnny?" Jess asked then you paused,"Uh................. pass?"
"Really? Not even that?" Jess asked giggling then you poured and roared,"Don’t tease me! Maths are like harrrrrrd!! Mmmmm~ But big dicks are harder~" You began to drool and Jess laughed then smiled and said,"Well how about we do this sweetie? Tonight you’ll tell everyone you’re an old friend of mine, and tonight you’ll probably have lots of cocks depending on what we do~"
"R-Really?! B-but... we’re both girlfriends and.... women...." You whimpered then Jess giggled,"Let’s put a pin in that then for tonight, you can get as romantic with me as you want, but you can be as much of a slut as you like, right?"
"Y-You mean I can be sexy?" You asked tilting your head,"I can fuck and be fucked?"
Jess nodded happily at you and you smiled,"Yay! Thank you Jessie!!" You proceeded to hug her tightly, so tightly your breasts squished against hers, and you took it further by deeply kissing Jess.
After the kiss was broken Jess smiled and laughed,"There’s my girl! I have a couple spare bikinis in my car, I think I can fit into mine, I’m not sure about you though, but for tonight would that really be a bad thing~?"
You tilted your head looking confused,"W-Would it?"
Jess just laughed and said,"There’s my cute girl, come on, my car’s out front! I may just come back here to have a little after party sex with my big boobied dragon~"
"H-Heh... like, I’d love that~ I want to do everything to you too~" You replied smiling at her and she nodded the took your hand,"Just stay with me whenever we’re at the party, hot ass~"
You slowly nodded to your succubus girlfriend, and allowed her to guide you out to her car. She handed you a bikini and helped you put it on, and while tight, it looked like it wa s the same size as your other one, but around your tits it again didn’t cover much at all, and Jessica wore a slightly more covering set, but you liked that you could show off more of your scales. Then you got on into the car and Jessica started it up, and like that you were off to what was probably going to be one hell of a hot costume party~