Bill's eyes bugged out as he saw his sister place one leg on his bed, her skirt spreading and lifting to expose one creamy thigh.

"Look at me, honey," she murmured, sliding her skirt up high. "Look between my legs."

Bill looked and his eyes were enormous. He could see the crotch of his sister's panties now, and his cock began to swell. He could feel it bulging up, wanting to hide it and at the same time let his sister see what she was doing to him. Tracy noticed his cock growing and stroked it with the tip of her finger.

She placed his palm on her thigh, gliding it toward her cunt. At the same time she closed her fingers around his concealed cock and squeezed it, making him groan.

"You don't mind if I feel your cock, do you, Bill?" she whispered. "I'll let you feel me, too. Let me feel your cock and you can fed my cunt."

"Oh, gosh!" Bill grunted, watching his sister pull his hand into her crotch. "Tracy, you feel hot and wet!"

"That's because I want this," she said, squeezing his cock again. "I'd love to have this in me."

"Really?" Bill gasped. "But Tracy, I don't know how."

"It's easy, honey. I'll show you." She kissed her brother, holding his cock hard and tight. She didn't have to keep his hand on her cunt now. Bill was rubbing and feeling her the way she had always wanted her dates to do. She purred softly and ran her hand into his pajamas, taking his cock and sliding her fist along it. She brushed his piss-hole, finding him wet there.

"Want me to take my panties off for you?" she murmured. "You can feel me better that way."

Bill was too excited to reply. Tracy lifted her ass and peeled her panties off with one hand, clinging to his cock with the other. She spread her legs wide. Bill choked as he stared at the pink wetness of his sister's hair-framed cunt. She sat in front of her brother, her knees drawn up and spread wide. Shoving the top of his pajamas down, she lifted his cock.