[M4F/ApF] Dosing your roommate/friend with growth, without them knowing~

NSFWLong Term

We were good friends and had been for years, and we had been sharing a house for a good couple of those years at this point. You had always been slightly infatuated with me and vice versa, a little flirty talk every so often and maybe some glances when you shouldn’t have - but there was one thing you desperately wanted to see from me. For me to grow. You wanted to see me rip out of my clothes, dick throb and bulge outwards as it got big enough to grind against your entire body.
And one day, you came across something that’d do exactly that - whether it be a crate of drinks, a special pill or whatever, it promised ‘big’ results. Immediately you bought it and brought it home, hiding it away from me before slowly beginning to dose me with it. Maybe you hand me a can while I’m relaxing or pour it into a meal, maybe you crush it up and mix it in with my food? However it happens, you force me to start growing for your own fantasies~

Hello and thank you for reading! Forced growth plots are a personal favourite of mine and I’ve been wanting to do one for a while, so here is one! Now to cover all the meta stuff:
• I have absolutely no size limits. At all. I will grow as big as you want me in all sense of the word~
• I am completely up for being a human or an anthro! My personal favourite species to play is a werewolf, I’d love to play a big bad hung wolfy that gets even bigger throughout this prompt, but it’s no requirement.
• Please include your kinks and limits in your message to me! Just makes it easier for us to get started.

Kinks wise, I’m up for a lot of things and will hope you are too, but heres a list of personal favourites:
• Cumflation, excessive cum/pre-cum, hyper-sized loads, hot cum, thick cum, cumming in/through clothing, condom ripping/bursting/filling, churning cum, churning balls, audible ejaculations.
• Growth (duh), no size limits, body size growth, dick/ball growth, size differences, bulges of all kinds, wardrobe malfunctions, destruction due to growth, hyper sizes, macro sizes, forced growth, growth through praise/worship, mutations, measurements/comparisons.
• Bulge play, pet-play, rope play, temperature play; all the -plays, blowjobs, titjobs, earjobs, thighjobs, hand jobs, sloppy blowjobs, saliva, long tongues, knotting, musk, intoxicating musk, biting, marking, collaring, name calling, praise and degradation, non-con, dub-con, public sex, risky sex.

(Also up for some more niche and weird stuff, feel free to ask if curious!) If you don’t see a kink included but want to ask about it, please do!

Limits are: Explicit pregnancy (breeding talk is fine), vore*, scat, feet, farts, gas, eggs/oviposition, smegma.

I hope to hear from you soon and have a great day! <3

Posted Jun 25, 2026, 6:57 AM UTC

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