Authors Notes: This story is a work of fiction. All characters are over eighteen years of age. All names, characters, places, and events mentioned are fictitious. Any resemblance to any persons, living or dead, actual events, locales or organizations is entirely coincidental.
Many thanks to Reindeer58 for the editorial expertise.
*****
Will's eyes immediately went to his sister as she stepped up to the counter taking a seat on the stool next to him. He was again amazed at how good she looked. His kid sister had always dressed rather frumpishly, lots of sweatshirts, long sleeves and baggy pants that hid the body she had developed in secret. Her clothes combined with her glasses gave her the bookworm look he was so familiar with. With her high school graduation behind her, Amy seemed determined to shed her past and start fresh when she headed off with him to school in a couple of weeks. One of the hottest summers in recent memory only aided her efforts. Amy had spent most of the summer showing a lot of skin, the tight denim shorts and bikini top that she wore that day had become her favorite thing to wear around the house and from the looks it she planned to continue that trend at the lake house. He watched her out of the corner of his eye as she pulled her long black hair back into a ponytail. The tight shorts, bikini top, ponytail, and glasses made for an amazing combination in his eyes. Amy had transformed into the sexiest dorky sister ever.
"You should put some decent clothes on young lady," their mother scolded the instant she turned from the stove and saw her daughter.
"I wear this all the time," Amy protested.
"You wear far too little these days at home as it is, but this isn't home," their mother continued. "We're on vacation and there are other people here, and they don't want to see you flaunting yourself."
"Some might," Will added with a mouthful of chicken sandwich.
"You're not helping," his mother scolded him. "Besides, the ones that wouldn't mind are exactly the ones your sister needs to stay away from. Only have one thing on their mind."
"I'm wearing shorts and a bikini," Amy continued, "I'm not topless, in a thong."
Will coughed drawing the eyes of his sister and mother toward him. He quickly lowered his eyes to his plate and continued to eat.
"That's barely a bikini top," their mother continued her complaint as she returned to making lunch."
"It is so," Amy said looking down at the bright red triangles and white strings that held the fabric tight to her breasts. "It's not the sixties mom," after sitting, she adjusted her glasses and waited for food. "And since its hotter here than Death Valley I need it to survive."
"Could fry an egg on the sidewalk here today," Will added.
"Egg hell," Amy said. "The whole chicken would burst into flames."
"It doesn't leave much to the imagination," their mother grumbled ignoring the joke.
"It's fine mom," Amy said with a deep sigh. "No one will care. Besides if I get my way I'll have Will with me for protection."
Will looked up from his plate to find his sister smiling at him. With all the willpower he could muster he kept his eyes from gliding down her body. "Hmm, what now?"
"Well ... ," Amy said twirling the hair of her ponytail in her hand. "I'd like to walk the boardwalk and check out the pier.
"By pier you mean that larger than normal dock that people walk out on to gawk at the lake like they've never seen trees and water before," he said.
"That's the one," Amy smiled. "Pleeease."
"You don't need me for that."
"Yes I do," she stuck out her lower lip in an exaggerated pout, "I don't wanna go by myself."
"I was ..."
"Please Will," Amy hopped off her stool as she took hold of his arm.
Will did not want to go walk down the boardwalk, the heat was nearly unbearable. But as his sister stood before him, batting her eyes at him from behind her glasses and her firm tits pressed against those red triangles, he really had no intention of saying no. But he couldn't give in too easily either, that might draw their mother's suspicion. A walk down the boardwalk would give him a chance to check her sexy little body out. He shouldn't, but he would. "It's pretty damn hot for a walk don't you think?"
No," Amy shook her head. "You have shorts on; just take your shirt off if it gets too bad."
"I dunno."
"Please," she pleaded making a dramatic production out of batting her eyes at him.
"Fine."
"Hooray," Amy chirped as she jumped up and down, her shaking breasts drawing her brother's eyes to them.
"Umm, yeah," he said clearing his throat. As he turned away from Amy he saw his mother looking at him with an odd expression before she turned back to preparing lunch. He wondered if he'd been noticed openly admiring his sister's assets.
"You want to go now then?"
"How about later, maybe after dinner if that's okay with you?" Amy said with a smile as she filled a glass with her favorite iced tea. "Maybe it'll be a little cooler then."
"Sounds good."
***
"Will!" Amy yelled from the bottom of the stairs, her arms folded under her breasts. "Will!"
"What!" His opportunity for a quick release had been ruined by the object of his lust. He finally had found a chance to slip away from the family long enough to relive some of the pressure caused by Amy and that bikini of hers. She had spent all afternoon laying out in the sun and walking around the house, all while those small bits of red fabric clung to her body.
"Hurry up," Amy yelled up the stairs.
"Hold your horses Nerdzilla, I'll be down in a minute," he growled back while he stuffed his erection back into his shorts. "That dock has been there thirty years it's not leaving today."
"I don't want to have to rush and it'll be dark soon."
"We have at least a couple of hours before it gets dark," he said as his problem rapidly deflated. "Give me a minute will ya?"
"Come on," she pleaded, "please. I want us to be able to take our time."
Will stepped to the top of the stairs. The scowl on her face did nothing to take away from the sight of her and those young firm breasts, pushed together by her folded arms. He quickly averted his eyes. The view was great but he knew if he continued to look his erection would return as he stood in front of her with no way to hide it. "Fine, let's go." Will said, his eyes roaming her body when she turned and bounded out of sight.
The oppressive heat and humidity of the day continued into the evening. Will peeled off his shirt nearly the minute they left the rental house. The sight of Amy as they walked along the boardwalk made the trip a mix of heaven and hell for him. The fabric of her shorts clung to her ass as her hips swayed back and forth, small beads of sweat ran down her tanned body. With quick sly glances he watched her tits move beneath the red fabric of that revealing bikini top that exposed a bit of the sides of her breasts. She took no obvious notice of Will's eyes on her, or the passing glances of admiration from most of the men, and at least a few women. Will made sure to carry his shirt in front of him as a precaution, too much time spent admiring Amy's ass threatened to leave him with an obvious erection that would not only expose his desire for her but also leave him with the extremely difficult task of explaining just exactly why he had gotten hard from spending time with his kid sister.
"Isn't it beautiful," Amy said as they stood at the end of the dock.
"It sure is," Will agreed with his eyes fixed on her ass.
"It's so hot," she complained wiping the sweat from her brow.
"It should break soon," Will said looking to the sky. "The sun'll down before long."
"Well let's go down to the water now, there's shade from the dock there already."
"Sounds good."
Amy turned and ran yelling back, "race ya."