When my step-daughter turned 18, my wife came to me and told me of her family’s tradition. It seems that the first sexual encounter with the kids was to be performed by the parent. She told me she fucked her son when he turned 18 and still has sex with him. She asked if I would keep the tradition going with Tanya. I asked her what Tanya thought about it. She said she was ready. Keep in mind, nudity was not unfamiliar to any of the family as none of us thought anything about open doors, showering while someone watches, and even when I fuck Toni Tanya would stand at the door and watch. I have to say, Tanya had a body that was to die for. Medium and firm tits, trimmed pussy, and a tight little ass. Toni probably doesn’t know that Tanya has sucked her brother’s cock and took it all the way, swallowing every drop. We made the plans for her to lose her virginity that night after her birthday party. I went into the shower and started soaping up. Toni and Tanya joined me. Toni dropped to her knees and started sucking my dick while I started caressing Tanya’s firm breasts. I tenderly sucjed each nipple into my mouth and let my fingers wander down to her sweet pussy. Toni grabbed Tanya’s hand and pulled her down to my dick and they both took turns sucking it. Toni knew,I was about to cum so she put my cock in Tanya’s mouth.