She starts to show off

"I..I'm not really sure what to do," she stammered, looking at Frank for direction.

"You're doing fine," he assured her. "Just turn, show off your ass, sit down and spread your legs, that sort of thing."

She nodded, biting her lip uncertainly then sat on the arm of the couch, spreading her thighs and giving him a view of her trimmed pussy, the puffy lips of her labia glistening with dew.

"Yeah, that's perfect! You getting juicy aren't you? Getting all wet and ready?"

The girl blushed deeply at his words then kneeled on the couch, turning her back to him as she looked over her shoulder.

Frank's cock twitched at the sight of her sweet young rump and from the flicker in her eyes she noticed it too. Biting her lip she bent over more, resting her arms on the back of the couch and raising her rump.

"Is this how...how you're going...to take me...like you took Maureen...from behind..." she whimpered.