I held his shaft in my hand with the tip just fractions away from my lips. Looking up into his eyes, I slid my tongue out. Touching nothing but the li...tle drop of pre-cum with my tongue, I swirled the pre-cum around the head of his penis. He let out a low moan when he felt my tongue touch him. I spread my lips and kissed the tip of his penis and slid my lips onto the tip. I ttook him into my mouth ever so slowly and made sure my lips caressed the tender skin. When I got to the rim, I stopped. Feeling what it was like to actually cum in a woman's mouth. Now, knowing with a great deal of certainty that his sister was very much aware of what was happening, about to happen anyway, and that it would take his own sister to allow him to experience this extreme pleasure.Mark felt the first powerful jettison of his spunk scream from the shaft of his prick in a violent burst, filling his sisters mouth. Kathy relaxed rather than tensing, taking him in even deeper. Explosion after gut wrenching. One evening I was sitting in front of the TV when my sister Celeste wandered into the room then stopped in front of me looking at the TV, “Hey, move,” I snarled, “your ugly butt is in the way.”She turned her head slightly then lifted her left hand and insolently flipped me off. I wasn’t feeling all that friendly so I asked her “Do you even know what that means brat?”As she turned slowly to face me her frown turned to a mischievous grin “Fuck you.”“Yeah,” I challenged, “well why don’t you? Let’s. “Have you ever taken a good look at her Brandon? She is hot!!!” rose took an offensive tone now.“Actually, I have now that you-OF COURSE NOT!” I looked at her with a serious look.“Well, when did my brother grow such big balls to yell at his lover!” she hissed angrily“I’m surprised you don’t know sis, you seem so interested in my balls, how could you not know?” I asked sarcastically.“Actually, I know nothing about your balls, maybe I should…. get to know them better….” She winked at me and.