"We can work out the details later," Betty said happily. She lifted and scooted down on the bed and grabbed his hard cock. "Right now I'm going to get you primed for all that action you promised me."

She got between his long legs. He was tall and kind of lean, but he was very strong. He had smooth skin and didn't have much hair on his body. She liked that. In fact, she liked everything about her darling brother. She loved him, really, and there wasn't anything in the world she wouldn't do for him, she thought. She could see why her parents swapped. They thought enough of each other to want each other to have all the pleasure possible. And as sex was one of the most important sources of pleasure it was only logical for true liberated couples to swap.

While thinking that and justifying to her own satisfaction her parent's and her own behavior, Betty hadn't been idle. Rod had parted his legs helpfully, and raised his knees, and she'd snuggled her face down near his sac and was licking the sperm-laden balls. She liked the heady male-smell and even liked to tongue his sensitive asshole.

She didn't think she'd take the time for that, though. They did need to get some sleep and she wanted him to go down on her, as well as sodomize her after he'd made her climax first with his mouth and then with his cock in her cunt. Would she go down on the boy she would decide to date? Maybe not. She did want to be fucked by somebody other than her brother though, and it's be wonderful if there was some way to get their father to fuck her!

Betty sucked one big nut into her mouth and twirled her tongue around and around. She soon pushed that ball out and gave the other one the same lavish treatment. Then she licked up along the underside of his jutting prick and saw the pearl that had formed on the head. She scooped the drop of clear liquid up with her tongue and then opened her mouth wide and took in the big knob.