Well today was an interesting day I come into the TV room and my little step sister Anastasia sitting there watching TV texting on her phone as everyone always does and we're talking about what's on TV... And I noticed that the sheet keeps kind of like bouncing you know... This dirty little Scamp was masturbating under the sheets two videos of her boyfriend jerking off! With me sitting right next to her like it's okay... So I called her out are dads in the kitchen making breakfast and she's masturbating in Plainview of me and Dad! Now I'm not going to lie my sister's hot petite I've seen her run down the hall without a towel coming out of the shower cuz she forgot it and yeah it made my dick hard... But now she's masturbating right next to me well I'm just going to have to stay and watch if she'll let me... Of course she's going to let me we all know they fantasize about fucking their Step Brothers! I see this opportunity and I'm going to take it