step-Brother saw naked step-Sister Uptown Bunny in the shower and now she want to see his big dick in return...But step-Brother didn't know her little step-Sister is a slut! Your little step-sister teases you about a rumor she heard - that you have a big dick. She bullies you into showing your dick to her and then mocks you about how big it is. She says especially teasing things, and an apology isn't enough (she's such a bitch she'd never apologize anyways). You trick her into taking a shrinking potion, and now that your cock is giant and you have power over her transformation, you make her take this big dick into her mouth. Tags: big step-brother x lil step-sister POV roleplay, family fantasy, teen, size difference, blowjob, facial, missionary, doggie, creampie, LOTS of cum, breeding kink, impregnation, taboo dirty talk