A knock on the bathroom door. "How much longer?"
"Calm your tits!" Rudy called back from under the shower's hot spray. "I'm almost finished."
"That's what you always say," his sister said through the cracked door, "But somehow it always takes you twenty minutes. It's already been ten! Mom should start charging for the extra water."
"I'll finish up! Just get out of here." Rudy found the body wash and started lathering up. He had been... distracted before and hadn't made much progress on the self-cleaning aspect of his shower. But he could power through and save his "distractions" for later if it meant keeping his overbearing older sister from barging in.
Sadly, it would not.
The door opened fully and Rudy heard his sister's footfalls as she made her way into the steamy chamber. "Sorry. I have to leave for work in thirty, and you have officially outlasted my patience. Get out or scoot over."
"What? Shut up, you're kidding!"
Through the fogged glass of the shower wall, Rudy's sister Julie was only a rough human outline. But nevertheless the boy could make out as the humanoid lump discarded her socks, top, sweatpants, and panties into a pile beside his own heap of pajamas.
The shower door slid open.
"I said scootch!"
Helpless to argue, Rudy stood aside to let her enter. He couldn't remember ever seeing Julie naked. He'd never given the issue much thought. But suddenly it was all he could think about.
She was a tall girl, almost the same height as him, with short brown hair cut in a boyish style. She had a light tan and was slim and stringy. Her legs and arms were gangly and unmuscled, but the confidence with which she held herself didn't make her seem delicate. Rudy had never viewed his sister as being all that feminine. As kids they had fought and wrestled, in many ways it was as though he had an older brother. But as he looked at her now, she didn't seem all that masculine.
At some point, Jule's tits had really come in. He remembered her being a late bloomer when her other girlfriends hit puberty, but that had been rectified in a big way. Her boobs were light beige cantaloupes with soft pink nipples at either tip. They would probably look bigger if she weren't so tall.
Julie had also clearly made a point of staying well groomed. Her pits and legs were utterly hairless, with hardly even perceptible stubble. And her crotch was just as smooth. Very clearly, Rudy could see her pussy lips and the pinkness inside. He gulped.
Just as surely as Rudy was surveying his sister, she was surveying him. And she was not as impressed.