The day had been a full one. The plane trip and the tryst with Roberta were followed by an afternoon at the UN and the Museum of Modern Art. Then there was dinner and a Broadway musical with her brother. All of them had taken their toll on Amy. Always a sound sleeper, she was completely exhausted by the time she hit the pillow.

Thus, it was all the more surprising that Amy found herself lying awake, wondering what had awakened her.

She heard a giggle and a heavy thump. She realized that the noise came from the next room – her brother's bedroom.

Amy slipped off the bed and padded barefoot to the door of her brother's bedroom. She was wearing a pair of boy-cut pajamas, that looked anything but boyish on her. She'd had to unbutton the top halfway down the front; it had been too tight across her nubile young tits.

"Shhh! Stop it, Berta – you'll wake her up!"

"You told me she sleeps like the dead," Roberta answered, teasing in her voice.

"Look, it's bad enough that you insisted on staying here while Amy is sleeping…"

"She's big enough to know you're not a monk," Roberta answered. Amy heard her brother suck in a sharp breath. "And she knows I'm not going to sleep on the couch, so for cripes sake, stop acting like she's some ignorant, slow child!"

"She's just a kid – ahhhh!"

"Still want me to stop?" Roberta teased.

Amy had to see what was going on. She knelt on the carpet and peered through the keyhole. A dim night light by the bed gave her eyes all the illumination she needed.

Roberta was slipping to her knees, kissing her brother's bare chest and muscle-ridged stomach. Amy wished they'd move a little bit, because her brother was bare-assed and she wanted to see his prick!

Roberta was on her knees, now. Her hands were working between Les' thighs, and her head was moving around and about in the vicinity of his cock. Amy was sure Roberta was licking and sucking her brother's prick – and she wanted to see!