She sucked the sleek cockhead for a few seconds and then began taking in more and more of the throbbing shaft. She enjoyed the little moaning sounds of pleasure drifting down from her brother's lips. She didn't want to make him come, since she didn't want to have to wait too long before being fucked, and as she'd already sucked out the tasty sperm she didn't find it all that difficult to stop.

But she did suck up and down on almost the entire length of throbbing flesh and muscle for a few seconds. She liked the feel of the pulsating male meat buried deep in her throat, and she knew that her brother enjoyed the sensation of her throat muscles working around the sensitive glans.

She'd had a lot of practice with Rod, training herself in the art of giving sexual pleasure with many parts of her body, and now she wanted to use that knowledge and ability to give and receive pleasure with other boys and men. She'd read that there weren't all that many females with the ability to milk with their inner muscles.

She had become so good at that art that sometimes she had to take it easy to keep from making her brother ejaculate prematurely. Rod had trained himself to last a long time though, and with her help he'd learned exactly how to please a female in all the wonderful ways. It was time for him to use his ability and knowledge on other girls – and women. Wouldn't it be wonderful if things worked out so that someday she and Rod went to a sex party, found their mother and father there, and were welcomed with open arms – and legs!

"It's my turn now, Betty."

She'd returned to his balls and had just about decided to take time to perform analingus, after all. But hearing Rod's words, she quickly moved until she was stretched out beside him. She'd suddenly had the urge to do a sixty-nine all the way to a blistering finish, and had started to shift her body around, but they could do that later when her very virile brother was going after his third spurting climax of the evening.