Stepmother teaches her stepson how to have his first sex

I have a dinner date tonight, so I wait at my boyfriend's house but his son greets me while my boyfriend gets home, my stepson is very nervous and I am very horny so I ask him if he has a girlfriend, he answers that no and he has never had sex, I take advantage of my horniness and teach him how to have good sex, until my cell phone rings and my boyfriend almost discovers us.<br>Tags. big ass, big-ass, hot