Joey's little sister was a community college student the summer he returned on a month's leave from his new job in the Coast Guard. She gave him a shy welcoming hug when she saw him, but seemed especially pleased to have him around the house, flirting with him and seeming to choose particularly sexy clothes to parade around in. During his long absence, first at college and then for his new job, her body had swelled in various places. The full globes of her breasts swelled beneath the tight tee shirts she wore, hardly needing the push-up bra clearly visible beneath the shirt, and her round butt cheeks looked very inviting above the curves of her thighs and calves when she bent over near him wearing the short shorts she seemed to favor. Her cheeks had blushed rosy red when she noticed him eying her chest one day, but she seemed pleased and she didn't turn away or reprimand him.
Sarah thought her older brother well built and handsome, much more appealing than the boys who sought her attention at school. She was pleased that he noticed her figure now, and it had given her a special thrill when she had caught him staring at her breasts.
The next day Joey had been relaxing after a few beers on the patio when his sister asked him if he wanted to go swimming. She was wearing a skimpy bikini with a top that barely contained her breasts and a bottom that showed off a great deal of her bottom as well. He eyed her up and down as she stood on the edge of the pool and she asked him if he liked it.
"Your suit? Or what's underneath?"
Sarah blushed at his boldness, quickly diving in.
He followed, chasing her across the pool. She climbed out, dripping, her nipples now jutting out through the thin material. He caught her staring at his crotch when he climbed out too, his wet swimsuit outlining the length of his penis against his thigh.
"What are you looking at sis? Haven't you seen a boy in a swimsuit before?"
Blushing again, she quickly dove back in to the pool. This time he was faster, catching her before she could scramble out and wrapping his arms around her as she tried to escape. His hands ended up on her breasts as she struggled and he pressed her body against his, squeezing the soft globes that filled his hands and pinching the nipples. Her bottom rubbed against his crotch and his rapidly growing shaft pressed into the valley between her ass cheeks.
"Stop it Joey! Someone will see!" she squealed.
He ignored her, enjoying the feel of her body against his. His hands pushed her top up and cupped her naked boobs.
"Joey!! No!"
She struggled and broke free as he reached down for her bottoms. She swam to the other side before he could catch her again, pulling her top back down to cover herself as she climbed out. She wrapped herself in a towel and glared at him in mock anger, her breasts still tingling from his touch.
"What's the matter sis?" he asked as he climbed out.
"You pervert!"
"Takes one to know one," he answered and headed for the house.
"Where are YOU going?" she asked, following him in. "Had enough already?" disappointed that their play had been interrupted so quickly.
"I need to pee," was his answer.
"Me first!" she said pushing past him.
He caught her at the bathroom door. "Only if I can watch," he replied, almost without thinking.
She hesitated for a second before answering.
"OK, but I get to watch you too!"
They closed and locked the door behind them. Sarah had a naughty, thrilling feeling that not only would Joey see her pussy but she would get to see what had made that lump in his swimsuit. Maybe he would put his hands on her breasts again too, or even somewhere else... She turned her back to him, lifted the toilet lid and slid the wet bottom of her suit down her thighs, wiggling her bare bottom as she did, before sitting and spreading her legs slightly.
Joey stared down at his sister's naked crotch as the stream of pee began to flow. She was shaved except for an attractive strip of soft curly brown hair above the puffy mounds surrounding her slit. He found the sight highly erotic and his penis was making a tent in the front of his suit right at her eye level. She finished and he watched as she wiped herself and stood up, pulling up her suit bottom as she did.
"Your turn."