"You want this?" Nate whispered. Tammy's fingers surrounded the white, pulsing shaft and she began to rub and massage it. Rebecca had never seen such immoral behavior. She knew she should stop watching. She should renounce things such as this. But she clung to the edge of the small, square opening and stared as the redhead gently worked the foreskin back from Nate's big cock.

"Yeah, baby, do it slow, do it nice!"

Tammy did it slow. And from the way Nate was groaning she was doing it nice too. Rebecca could see that knob in all its swollen glory now. It was streamlined and shiny from lubrication. It was dark blue in color, probably from blood. Yes, it seemed to be congested with blood, Rebecca thought. Maybe that was what made it so big and hard-looking. But as Tammy pressed a fingertip into the head of it, the flesh gave. That strangely shaped tip was spongy. Rebecca stared harder, her heart pounding. The two naked bodies were almost close enough for her to touch. She could smell the sexy musk rising from Tammy as Nate let her play with his big cock.

Rebecca found herself fascinated with the way the red-headed girl was manipulating Nate. She squeezed his shaft hard and brought her fingers up sharply against the flared part of his glans. Yes, she remembered that term now. She'd read about it and never realized what it meant. This sudden jerk against Nate's glans seemed to be very pleasurable. Because the big man trembled a little each time Tammy did it. She watched his swollen tip as she continued to excite him. It was almost as if that bulging knob of spongy flesh had hypnotized the redhead.

"Yeah, baby, you do it just right. I think I won't be able to get along without you from now on…"