The more of my cock that she took in her mouth the harder I pinched. I felt my cock head hit the back of her throat and still had a little over an inc... of my cock left to go before I got it all in. I grabbed the back of her head and pushed. I felt my cock head move past her tonsils and down her throat. (She must take after her aunt in the blowjob department because she gave great head too.)Kirsten then did something totaly amazing. She began to lick my balls while my cock was buried deep in her. When it tightened around his cock, he must have been overwhelmed by the feeling also. She could feel his cock begin to throb and the head swelled to a size that wouldn’t let it out of her immedialtely.Her pussy had a death-grip on his cock and wouldn’t let him withdraw. His attempts to pull it out proved somewhat unsuccessful. While apologizing for doing it, he began to shoot his sticky sperm deep inside of her tummy. She could feel his cock expand each time the head unloaded its hot creamy. "She gurgled softly. "You watch me."She scooted down his body. Donny placed his hands behind his head,looking down at her. Marilyn kissed at his stomach, working her wettongue into his belly button. As she kissed and licked at his stomach,she continued to stroke and fondle his cock and balls.She pulled the waist of his trunks down low enough to expose the hairsat the base of his cock. She wiggled and twisted her tongue lower,circling the tip among the wiry hairs. Donny began to breathe faster. This went on several more times when John suddenly called, "Switch! Back door this time." This time when the men shifted - Sean to Laura, John to Ashley, and Brad to Kelly - they used the girls' own juices to lubricate their rear openings. As excited as the women were it was easy for the men to soon embed their cocks deeply within the tight, round, female bottoms. Twice more calls of "Switch!" brought a change until at last the men came, exploding their loads deep inside the women's bowels.As.