The door was still open. Blushing, Sylvia looked inside the house. Jill was sprawled on her back on the couch, stark naked. The nympho blonde was finger-fucking as fast as she could, grimacing up at the ceiling, humping her round ass off the sofa in a frantic fucking motion. Sylvia stared helplessly at her sister's curly-haired pussy, watching her fingers going in and out, seeing how wet and gooshy Jill's cunt looked. The college kid had obviously just finished fucking the shit out of her. It was just like Jill to jack off right after some stud had shot a big load of jizz up her cunt.

"Unngggggghhhhh!" Jill moaned. "Oh, so good… unh, unhhhh…"

Red-faced with embarrassment, ashamed of the hot tingling she felt in her panties, Sylvia quietly shut the door. She stood on the step, counting the seconds, then finally rapped firmly. She heard Jill curse, followed by the protest of the couch springs as the naked blonde hopped off the sofa and padded to the door.

"Who is it?"

"Guess," Sylvia said sarcastically. "I called you an hour ago. Remember?"

"Oh, yeah. Well, come on in…"

Jill swung the door open, obviously completely unconcerned with her nakedness, or even with the white drops of spunk that showed clearly inner thighs next to her pussy. Jill turned on her side and Sylvia stared helplessly at her sister's round, peach-shaped ass. The cheeks were flushed pink, obviously from all the humping Jill had done that morning.

"Okay, shoot," Jill said. She sprawled on the couch, wiggling her back on the padded armrest and carelessly spreading her long, slender legs apart. Sylvia blushed, trying not to look at her sister's wet cunt. "What do you want Tony to stay with me for?"