"Forget it, I'm on the pill!" she says, exasperatedly. "Just keep going!" I pick up the rhythm, riding her through the final stages of her orgasm. I'm... totally spent and the water is pounding on my back. "We should wash," I say, making no effort to disengage my cock from her fiery pussy. "Probably," she agrees, continuing to lean against the shower wall."Brandon!" my s!ster yells, coming into the bathroom. "Are you going to shower all day?" "No, I'm almost done," I answer but she's already. She slowly pulled my jokey and took my 7inch dick in her hand and started to care it. I took my hand behind her and unhooked her bra. Her boobs jumped out and I was shocked to see such a large boobs. I started it suck her nipples and squeeze her boobs, she was screaming and telling me to squeeze it harder. I kissed on her neck, forehead, armpit…. Tara started moaning loudly aahhhhhh oh yes do it harder. I removed her panty, she had a small trimmed bush .I made her sleep in the bed facing the. . you grew up.. a lot." She gave me a warm smile and hugged me. Since I was still lying down when she hugged me, she was positioned as if she was about to straddel me. Forgetting she was my sister, I could only think about her breasts on my chest and her crotch pressing against mine. I used all my strenght to not get a boner.When she got back up, dad called us down stairs. When we got there he said he had some important news. "Kids, I have a date tonight, my first date in years. I'll be out. I held that position until the driver blew his horn. Christina turned her head up to me, "Are you showing me off to the trucker?" "I am. I did it to tease him, but he's seen enough now," I replied before hitting the gas and pulling back into the right lane. Getting back to stroking my pet, I took the time to get her back in the groove. When she started to gently grind her pubis into the seat, I knew she was rousing.Christina kept her stimulation of me to a soft touch of the tongue. But,.