Your girlfriend Katherine ordered a new supplement online. This supplement will allow her tits to grow bigger, but the only downside is your cock gets smaller. You both have to take it, swallow it whole, and then you must masturbate for it to take full effect. With your cock in hand, she tells you how to stroke. The supplement begins to work immediately. Katherine’s boobs are already more juicy and firm, and you have lost half an inch. It is not so bad, you suppose. You can afford to lose some length if it makes her happy! You keep going, but it keeps shrinking! You start to get scared and you tell her this isn’t going well and she gets a little angry and tells you to keep going. She seems to really love how big her tits are getting, and she will stop at nothing to have the best rack possible. She is starting to become very selfish and she makes fun of your tiny cock. You never wanted this, you just thought it would be maybe an inch or two! It is rapidly getting smaller by the second, but she is mean and makes you keep going. Eventually after pleading, Katherine agrees to read the warning label. Doing this was a complete mistake, because the side effects for cocks of your size shrinking are terrible. Your cock will completely shrink into a micro penis and you will never be able to cum again! Katherine relentlessly laughs at you, and makes fun of you. You try your best to cum, but nothing comes out. Your life is ruined and now she gets to have what she wanted all along. TLDR: magical supplement causes cock shrinking but also breast expansion. Contains GF roleplay and small penis humiliation. This video was originally created as a custom video. I love making customs, I would be happy to bring your particular fantasy to life. Please feel free to contact me so I can create a special video for you! TAGS for this video: brunette, curvy, big tits, big ass, bouncing tits, bouncing ass, bouncing boobs, big boobs, huge tits, giant tits, body piercings, piercings, pussy, dirty talk, dirty talking, cute talk, Katherine Pine, katherine pine, kat pine, katherinepine19, katherineepine, body piercings, gothic, slutty, slut, whore, titty play, tits, ass, SPH, small cocks, small dicks, small dick, humiliation, verbal humiliation, transformations, transformation fantasies, magic spell, breast growing, breast expansion, JOI, jerk off instructions, femdomme, femme domme, femdom, domination