" Jennifer cried hoarsely into the pillow. "Oh baby, that feels so fucking good. Lick my ass, oh fuck."Jennifer pulled her knees further up underneath...her, making her round butt stick out more. She bent her lower back, spread her legs underneath and ground her ass back and up as to open up her crotch area even more to her son, hoping he wouldn't miss any spot.Mark was now licking from bottom to top through her butt cleft as if licking an ice cream cone. Starting at her cunt, he dragged the flat. I could feel her monster cock growing against my stomach while all this was happening. My hands were on her back and I was trying to suck her lips whenever I had a chance. While I was rubbing her back with my hands, I felt Julie’s tongue enter my mouth and must have explored every corner of my mouth in few seconds. She was rubbing her cock on my stomach with her aggressive pelvis thrusts. While all this was going on I felt someone’s legs slide in the pool on my each side. Before I could see who. All Jeff could do was hang for the ride. He had never seen her like this before! She was going nuts, bouncing up and down on his lap faster than ever! His hands slid down the wet skin of her back and latched onto her ass. He squeezed her soft cheeks, helping her slam down with even more force, driving his dick deep into his sister. ‘MMMPH! MMMPH! MMPH! UNH! MMPH!’ Her muffled moans were so loud they could be heard throughout the house and her orgasm was rising rapidly. ‘OHHHHHHHGAWD!’ she. The guy smiled his eyes fixed firmly on her. She jumped back inside and closed the door. I laughed inside thinking, “That will teach you.”I sat there waiting for her to reappear wearing one of the bikinis and soon she stepped out wearing the revealing white one that showed her body off to the fullest. She sat on her sun lounger and muttered, “What a fucking pervert,” as she caught sight of the guy still working away at the garden of another cabana.I told her, “Well if you will stand there naked.