“Fair enough. Ok hang on.” She stepped into the tub, placed one toe on the far edge. “Ready?” Sam nodded enthusiastically. He smiled toothily beneath the flow of water. Susan laughed, and delicately spread her pussy lips with her fingers. She sighed and smiled, as a stream of piss trickled out between her legs. Sams cock, more than stirring shot to attention. He stared wide-eyed as the liquid rained from her body onto the tub floor. After a moment it tapered off. “All done. Now it seems like you’ve got a bit of a situation down there Sammy.” She cocked her head towards his erection. Sam looked down. “Oh wow, look who’s up. It’s a standing ovation to your beauty sis.” He winked.
Susan stuck her tongue out and walked closer to him. “Is that so?” Her body was flush against his. His cock pressed against her thigh. “Let’s make sure you get nice and clean Sammy,” she said as she fell to her knees. Sam leaned back against the shower wall, enjoying the hot water in his face. Susan wrapped her hand around his shaft and stroked him gently. Her lips parted. Gingerly her tongued ran up the length of his dick and circled the head. Sam exhaled slowly. Her teeth nibbled him very, very softly as her skilled tongue swirled. “Mmmm, I can still taste mom’s pussy on you.”
“It’s good isn’t it?” Sam said absently, stroking his sisters wet hair.
“I’ve tasted a lot of vaginas and hers is still the best.” Susan said, before taking him to her mouth again. Her head bobbed back and fourth. Sam breathed in and out deeply. Sighing a little. She leaned into him, relaxing her throat and took the full length of him into her, wet, hot mouth. Her hand cupped and massaged his balls.
“mmmmmmsusan…”
She slipped back off him and again nibbled her way softly up his shaft. She pushed him up to get a better angle, before taking his balls into her mouth. This was her absolute best trick Sam knew. Her hand very gently stroked his shaft, while her lips sucked the family jewels. Her tongue seemed to massage each one, as if she was making out with the testicle.
His breath caught in his throat. He was seconds away, he knew. He would explode in her mouth just as he had Alice’s moments before. But then she stopped. She stood up deftly. He looked at her confused and flustered “Hey! Your not quite done down there!”
She grinned evilly “yes I am.”
Sam stared horrified, “I don’t know if you’ve forgotten what is looks like sis, but there’s a pretty big finish.”
Susan laugh. “I got you clean, that’s all I said I would do. Now it you’re turn to clean me. And If you do a good job and are a good boy and don’t touch yourself while you do, I’ll let you finish.”
Sam laughed despite himself. This had been a favorite game of theirs for some time. “Oooh you bitch!”
Susan handed him a bar of soap, “Say that again.” Sam’s cock was throbbing painfully. His head swum, it was a pain pleasure mix he both loved and couldn’t bare. Grinning he slipped the soap between her legs and ran it over her mound “You bitch.” He said, softer this time.