Slytherin Step Sis Teases Your Dick

I'm hanging out in the common room late at night when you come to "check on me." You're always snooping around, why do you care what I'm doing? I tell you it's none of your business, but you insist. You notice what I'm wearing under my robes, and I decide to shut you up for good and just show you my lacy lingerie... But I see that bulge growing in your pants. I tell you to take it out, and I'm surprised by how... small it is. I tease you with my tits and try and get your cock harder so it gets bigger, but it just doesn't! I'm certainly not going to fuck something so small, but I'll be nice and let you jerk off onto my tits... I need to get this over with so I can go meet up with the guy I actually wanted to fuck tonight! Tags: cosplay, femdom, sph, humiliation, joi, tease, lingerie, tit play, tit worship