Sam stopped talking when he felt his sister drying his prick. He couldn't help what was happening down there, but it was embarrassing. He sighed and relaxed when she abandoned the member. At least it hadn't gotten completely hard again. Alexis agreed that the hot tub was a good idea and went off to get it ready. He walked around the house, naked. He tried to get something to eat, but couldn't bend over in the fridge. He couldn't find anything worth eating in the cupboards. He got several pieces of bread and was stuffing them in his mouth when Alexis found him.
"It's ready," she said. He looked at her. Instead of seeing his sister, he saw an almost grown woman. A very sexy looking woman, he thought, in her light cotton PJs, under which there was most assuredly smooth silky skin and nipples and a pussy.... He realized with horror that his cock was rising.
"Don't tell me you have to pee again," she said, watching the sausage start changing back into a Kielbasa.
"No," he said too quickly. How was he going to explain it. She didn't help. She stood there, one hip cocked, hand on hip, breasts poking the material out. SHIT he had to stop thinking about that. "Um...sometimes it just happens."
Alexis looked at him. He was embarrassed! Wow. Her big brother, who ruined her social life, and ordered her around, was embarrassed. He was also virtually helpless, she thought. Hmmmmm.
"Well, tell it to behave and come on." She turned and left.
Sam thought, "My, but her hips sway nicely when she walks."
By the time he got to the hot tub his mind had done the rest. He was once again hard and proudly curved. There were steps leading up to the hot tub, and steps leading down into it, which was good, because there was no way he could have climbed over the edge. But Alexis wasn't going to just let him climb those steps without assistance. There was no handrail, and he could slip. So she got on top and held his hand as he climbed up.
Now was the tricky part. Getting him down into the steaming hot water. He started to step down and tottered. His foot came back up.
"Hold it," said Alexis. She made her decision then, a decision that would change their lives forever.
She unbuttoned her PJ top and slipped it off. Then she bent and removed the bottoms. Now she too was gloriously naked. She stepped down into the water. MAN it was hot! She looked up at her brother. There, right in front of her face was that interesting boner of his. Now there was a clear drop of fluid oozing out of the little hole in the end.
"I thought you said you didn't have to pee," she said.
Sam was paralyzed. His sister had stripped naked in front of him. She was gorgeous! She had tits that were a baby's dream! And her pubic hair. Even from above he could see the plump lips of her pussy poking out through that black hair. His cock was like steel now. She said something to him about peeing. At the last second he realized what she was talking about. "I don't. It's just ... a hardon."
"Well, then I need to take you back to the doctor, cause there's something coming out of it," she said. She was serious too. She leaned closer to his organ. "It's kind of clear and it's oozing out. Don't you feel it?"
Sam panicked. If she took him back to the doctor and told the doctor what she had just told him he'd be the laughing stock of the community. And how exactly would he explain why his sister had been looking at his hard dick?
"No!" he blurted. "Look, it's complicated, but there's nothing wrong. It's done that before. OK? Just get me in the water."
While he had been talking the stuff oozed more and more until it ran down his dick and started to drip into the water. When the drop left the bottom of his dick Alexis instinctively stuck her hand out and caught it. She peered at it closely and rubbed a finger in it. It was slippery, not like pee at all. But what else could come out of a penis?
The answer hit her like a ton of bricks.
"OH!" she said. This was a REAL hardon. The kind that boys got when they wanted to have sex! And she was standing there naked! Her brother wanted to have SEX ... with HER! The realization made her knees feel weak and a funny heat started expanding in her abdomen. She realized she was blushing. She took a breath and reached her hand out to her brother. Slowly she helped him down the steps, into the water.
Her eyes never left his penis.