In our family, when someone turns eighteen, it's your duty to teach them about the world, including the world of sex. My stepsister and I participated when we were 18. Now it's our turn to do this with our stepsons. We call it a tradition, as if it makes it any easier. But I still have to look my stepson in the eyes as I touch his cock for the first time. For years, I've been dreading this moment. What will happen after today? Will my son still love me? Even when he's balls deep into my vagina, would he still see me as his stepmother? And is it worse if I admit that I've wanted this for ages? I want to feel his cock throbbing inside me, I want to taste and feel his cum, and I want him to want me. Maybe we could even share our stepsons and become an even stronger family, bonded forever.