We had to be studying with my cousin but I lost concentration when I saw how hard his cock was for looking at my tits, so I started sucking it without my aunt discovering us, and to make him cum on my tits I started masturbating him with them, until he couldn't contain the urge. I just wanted him to be more relaxed to continue studying! That's what good cousin do, right? Teniamos que estar estudiando con mi primo pero me desconcentre cuando vi lo dura que tenia la verga por mirarme las tetas, asi que empece a chuparsela sin que nuestra tia nos descubriera. Para que se corriera en mis tetas lo empece a masturbar con ellas, hasta que no pudo contener las ganas. Solo queria que estuviera mas relajado para seguir estudiando! eso hacen las buenas primas, no es cierto?