your fetish is very very arousing: you just love jumping on step-mommy's lap, don't you? so shameful and childish! but you just can't help yourself! your balls are becoming so sore, but it feels so good that you are almost exploding. do you like fucking step-mommy's knee, darling? of coz you do! what if I give you such an extreme lapsit in front of your friends? what would they say about your innocent mental problem? hahahahha go further and blow your load jumping on my powerful knee, follow the countdown (if you can ever handle that)