When Fern heard guys say things like "Suck me," she always thought it was just a smart mouthed figure of speech.

The teen jerked on his cock faster and faster. His balls bounced wildly up and down. All at once, he shoved the middle finger of his left hand into his mouth, then yanked it out. He turned once more so the girls could see him in profile, squatted slightly, arching his willowy back and turning up his ass. Then he shoved his moistened middle finger between his asscheeks and wiggled it up his asshole. His skinny brown body shivered.

"What's he doing?" Penny asked.

"Shoving his finger up his ass," Fern said. "I know that, silly. But why's he doing it?"

"Maybe it feels good," Fern said. "Didn't you ever do it?"

"Of course, but I ain't a guy. I never saw a guy do it."

"A lot of them do it," Fern said. "I've seen a lot of them do it?"

Fern felt like laughing. Maybe she knew more about boys than Penny – Miss Playboy Centerfold, Miss Chicago Whore.

The young surfer wiggled his ass in circles, working his finger in and out of it. He pumped his cock as if he wanted to pull it out of his loins. His wheat shock of hair danced. All at once, white gobs of jism shot out of his cock.

"He's coming," Penny squealed. "Oh, he's coming, he's coming! Look at him shoot! Oh, I can almost taste it! Mmm."

The boy's cum pelted the green leaves of sea grapes. Some of it pelted the sand. A half dozen times, the explosions of thick white cum hung in the air of the clearing. A half-dozen times, the boy's skinny body shuddered, his loins bucking. Finally, he straightened up, pulling his finger out of his asshole, releasing his cock.

The spent cock wagged up and down. The teen milked it, caught the cum on his hand, and licked the cum from his fingers. He shoved the middle finger of his left hand into his mouth.