A Dangerous Obsession
Her big butt was there for the grinding, and my cock was already pressed between those cheeks.
"Seb? What are you doing?" My mom asked. Seb! She called me by my nickname! Sabrina, awake and watching, laughed along with me.
"Rubbing," I replied.
"Nnnnh," Mom whined again. "That doesn't go there, though. Goes here." She stuck her butt out on the downstroke and reached her hand back, lining me up with her dripping wet pussy in one smooth movement, and I pressed inside. We both gasped, and Sabrina's eyes lit up. She bit her lip, and I could see her arm moving, her hand between her thighs. "Sabrina, let me," Mom whimpered, and they swapped. Sabrina's hand worked Mom's clit, and Sabrina worked her