Suddenly Tracy stood up. "I think I'll try it," she said, her voice throaty.
"Try what, honey?" Susan asked, her own voice filled with emotion.
"Bill," Tracy said bluntly, looking at her mother with bold, unashamed eyes.
Susan gasped as she looked at her daughter. "With your brother?"
"He's the only teen here," Tracy said. "If you can suck off the neighbor – and he's no older than Bill – why can't I fuck my brother?"
"Fuck your…" Susan said, the words coming out in a whisper, her eyes gleaming. "Fuck your brother?"
"That's what I said," Tracy replied, wondering if her mother was going to try and stop her. "Fuck Bill."
Susan licked her lips. "You can try," she said in a hoarse voice. "I'm not sure he will, but you can try."
A grin spread over Tracy's face. She stepped up to her mother and leaned down, kissing her on the mouth. She had not kissed her mother on the mouth for years.
Feeling her daughter's moist, hot lips against hers, Susan moaned softly, and as she felt the tip of Tracy's tongue across her lips, her hand moved. Before she could stop it she had curled her fingers about Tracy's tit.
Tracy squealed softly against her mother's mouth when she felt the woman's hand squeeze her tit. Thrusting her tongue past her mother's lips suddenly, she also placed her palm upon one spongy tit. Susan sucked her daughter's tongue for a moment, then pulled away.
Their eyes flashed understanding to each other and Tracy turned and started out of the room. Susan's eyes watched the sensual sway of her daughter's ass, wishing she had the same courage. She wasn't sure how her son would react to his sister, but she thought that he would be delighted.
Tracy entered her brother's room without knocking. He sat on his bed, legs crossed, reading a book on history. He looked up as she walked in, smiling to see her. Tracy sat on the edge of his bed, glancing at his lap. He was already in his pajamas, but she couldn't see his cock. She caressed his smooth, face with a warm hand.
"You saw me, didn't you?" she said softly. "You saw me come out of the bathroom. I caught you looking at me, and it excited you, didn't it, Bill?"
He started to blush.
"No, don't blush, honey," she soothed. "It's all right for you to look at me. Maybe I wanted you to see me that way. Maybe I like it when you look at me."
"You do, Tracy?" he asked, his eyes shining. "You don't mind if I look at you?"
"I like it," she said again. "It makes me feel good when you look at me. I get all tingly and warm and wet."
"Wet?"
"You know, down there," she whispered, pointing between her legs.
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.
"Oooh, you have a nice cock, honey!" she cooed, stroking it. "It's beautiful, Bill! And you're so hard! I bet you can't wait to fuck me, can you?"
He shook his head vigorously, gulping as he stared at her pussy.
Understanding his emotions, Tracy pressed him onto his back, leaning over him. She licked and kissed his chest, swirling her wet tongue about his tiny nipples, biting them tenderly. All the time, she kept a tight clutch on his pulsating cock, jerking her fist up and down.
"Shove your hand under my dress and feel me up, honey! Play with my cunt, too!"
"Mother might catch…"
"Hush," Tracy said, "Don't worry about mother. Play with my pussy and we'll have fun. You want to fuck me, don't you?"
"Gosh, yes!"
"Then hush arid do whatever you want with me," she said, sliding her hand to his balls.
She gave them a squeeze, then looked at him. Bill was totally devoid of hair on his cock and balls. But his prick stood up in hardness, his prickhead swollen, and he was dripping from his piss-hole. The fact that her brother was sent shivering excitement through her body, making her cunt contract as he rubbed his palm about it. For the first time, Tracy fully understood her mother's desire for teens.
"Do it now, Tracy!" he begged. "Do it like you said!"
Tracy giggled lewdly. "You've got to say it, Bill. Say fuck me, Tracy! Fuck me with your cunt."
"Fuck me, Tracy!" Bill almost shouted. "Fuck me with your cunt!"
"Oooh, I will!" Tracy gurgled, getting to her knees and lifting her skirt to her waist. "I will fuck you, Bill! I'll fuck you with my hot cunt!"
Leaning against the wall outside the open door of her son's bedroom, Susan listened with excitement. She had pulled her skirt up and shoved her hand into her panties, rubbing at her swollen clit, wanting to watch her children as they fucked. Just hearing them sent shivers of pleasure up and down her flesh. It thrilled her until she thought she would come just from listening.
Tracy, holding her skirt high, spread her knees over her brother's thighs. He gazed with unfocused eyes at his sister's cunt, excited to see the wet pinkness he had been trying to see for a long time. It was hard for him to believe that his sister was going to fuck him, and his cock throbbed until he thought he would come before it was inside her.
"Watch, honey!" Tracy mewled. "Look at my cunt suck your cock in!"
She held his cock at the base, rubbing his swollen prickhead back and forth over her fiery cunt. Finally she settled slowly, the head of her brother's cock spreading her hot cunt. Bill gulped when he felt that hot wetness engulf his cock. The hairy lips of his sister's cunt moved down slowly until he could no longer see his cock.
"Is it nice?" Tracy whimpered, the lips of her pussy squeezing his prick. "Am I hot and wet for you, Bill?"
He nodded as his sister sat on him, his cock buried deep. When she started lifting and shoving on his cock, he dug his hands into her thighs, trying to keep from coming too fast.