Only after Sylvia cumms

"Just a minute Helen !" Sylvia moans, "I am so close. Mark, don't you dare to cumm before you fucked Helen. There Helen you'll have your turn"!"

"So Mark, who is better Sylvia or Misty" Helen laughs.

"I don't know " Mark says "I never fucked Mis...." But before he can finished his sentence, Helen grinds her pussy harder against Mark's lips.

"What the hell are you saying Mark......." Sylvia also can't finish her sentence as waves of orgasm take her breath away and her juice spills over Mark's cock...........

Helen jumps down from the couch, pushes Mark away and seals Sylvia's pussy with her mouth drinking her cumm........ she kneels in front of Sylvia and told Mark to fuck her doggy style. "Now you two can continue your discussion"

Mark holds Helen ass cheeks in his hands and drives his cock into Helen wett pussy, he was rather annoyed that he was pushed away out of Sylvia's pussy. But to his surprise he finds Helen's pussy tighter than Sylvia, and he pounds away at her tight pussy, shoving Helen's tongue into Sylvia's pussy.

Sylvia's breathing was beginning to calm down when Helen's tongue begins to create havoc again. In between moaning she said "Mark you better have a good explanation"

What is Mark's story?