I catch my Step-bro watching porn in his room but not just any porn, step-bro / step-sis porn. He doesn't see me and I'm too embarrassed to say anything so I sneak back out. Later on, I sit on the sofa with his and tell him I'm bored as we've been left alone with it being their anniversary. He eventually agrees to play a game and we start playing truth or dare. Things take a turn and before you know it, he is deep inside his innocent, pure step-sister. He tells her she can't tell anyone, ever! He cums inside her and she panics. He assures her that she won't get pregnant if he sucks it back out, so she quickly sits on his face as he licks and sucks his step-sisters cum filled pussy!