She'd spread her legs for them the very next night after the gang bang under the freeway.

Debby felt guilty about putting out for them so freely, but she just couldn't help it.

She was a normal, very horny girl, with a beautiful face and just the kind of big-titted body men wanted. Now that she'd experienced the joys of fucking and sucking, how could she be expected to go without that pleasure ever again. Just thinking about giving Steve a blow job made her want to cream in her panties.

For five days in a row Debby had found an excuse to fuck both of them every night: at the drive-in, under the overpass, and other places besides. But now they were gone on a vacation trip with their parents, and Debby was so horny she could hardly stand it. This was the fifth time she'd fingerfucked herself that day.

Now she was about to cum. Debby whimpered and buried two fingers into her gurgling, greasily wet pussy. She hotly bucked her ass off the bed, humping her hand as hard as she could.

"Hey ya, Sis," a familiar voice whispered from the other side of the bedroom door. "It's me. Can I come in and talk to you for a minute?"

Debby groaned and covered her voluptuous nakedness with a loose sheet. The voice was one she recognized all too well. It was her brother, Dave.

Debby thought Dave was a little twerp. He was only two years younger than she was, and she had to admit that he was quite handsome, with a slim, athletic figure and wavy blonde hair. But Debby considered him very immature, and she didn't like the way he sometimes made crude remarks about her "big knockers" and "stacked" body.