Dominic opened the door.
"Hello." he called, no one answered. He walked inside and went to the bathroom to change into his shorts.
Dominic had moved across town a few years ago to be closer to his job at the chicken processing plant. He got laid off and found another job framing, which he liked more. He still came home to his parents' house every few days to swim in their pool and help out with yard work.
His boss was having trouble getting their next project started and didn't have any work for the next few days, so Dom planned on swimming and relaxing until he could get back to work.
He put on his headphones and sat down next to the pool, closing his eyes.
Amber was upstairs finishing her last project for trade school before summer break.
No one would guess from looking at her that she had an interest in diesel motors, but she enjoyed working with them. She'd always loved getting dirty and working on challenging problems. So when she aced the small motors segment in her high school shop class, her teacher suggested she try working with larger engines.
The rest of her class were all 20 something men and by now they had learned to treat her like one of the guys, despite her small frame. She was 5'4" and 135 pounds, but lean with muscular legs that managed to drive her classmates crazy even in coveralls.
She hopped down the stairs quietly singing the bubbly pop song that had been stuck in her head all day.
"You know I'm gonna hmm hmm for you babe." She filled in the portions of the song she'd forgotten.
"Cause I don't wanna hmm hmm later days."
She opened the fridge to check if anything had appeared in the last hour, then shut it. It was then she saw someone lying in her favourite spot by the pool.
"There's not much wrong with that body." she thought to herself, not realizing Dom had the day off. "I bet it's one of Katy's friends."
Ever since they were in highschool, Amber had had a special interest in her older sister's friends. Something about how mad it made Katy added to their attractiveness.
She poured two glasses of cucumber water and walked out to the pool deck to see if he was interested.
"Hey there." she said in a higher octave than she ever let her classmates know she could reach.
She stopped, the smile vanished from her face and turned to mild shock when she realized it was her brother.
"Uhhhh, here I brought you this"
"Oh, thanks." He smiled and sat up.
Amber watched as a small bead of sweat slid down his chest. She blinked and shook her head. 'Whoa there. Change gears there, libido.' she thought.
After a few minutes of chatting about his work and her school, Dom suggested they get in the pool to cool off.
"I bet I can still beat you at laps."
"You could never beat me without cheating." she laughed, trying to shake the thoughts she had put together while pouring those drinks, "Also, that's not how those words get put together. Be right back, I'll get changed."
She skipped upstairs, her brown ponytail bobbing along behind her. She opened her drawer to pick which swimsuit to put on. There was a dark blue one-piece with a bare back and a new, very small white bikini with pink hearts.
A small thrill passed through her body when she thought about playing with the thin straps on either side of her hips while Dom looked at her. She bit her lip. 'Do I seriously get off on that?'
She'd been aware of her brother's adequate physique for years, but never gave it a second thought. With broad shoulders, big arms, bigger now that he had a labour job, and hair that never seemed to lie flat, he had no trouble in the looks department.
Amber thought about her past boyfriends. She definitely had a type. Dark hair, reasonably tall, big in the shoulders... muscular. 'Oh gawd... I've been dating guys who look like Dom. How could I not have seen it?'
She took a deep breath and grabbed the bikini. Her heart beat twice in the time it should've beat once. She slipped them on and tied them, adjusting her breasts in her top and tying it tight.
She took one last look in the mirror and let her hair out of her ponytail, her hair barely reaching her shoulders.
She went back downstairs with a towel and slowly stepped into the pool. Dominic was already warming up for the race he had promised.
They lined up against the pool wall and Dominic counted down.
"3, 2, 1, go!" He shouted, the 'go' muffled by water as he started early.
Amber kicked off the side wall and stretched out her arms in front of her. She gave two strokes before turning to meet the wall, then shot back across.
She'd placed 3rd in regionals for freestyle swimming in grade 12. Despite her height, she seemed to glide through the water with as few strokes as the girls 5 inches taller.
After 6 laps, 150 yards, she touched the wall and looked to see where Dom was.
"Five." he gasped.
She laughed. "Dom, you're slowing down in your old age."
Out of breath, he lifted himself out of the water and laid on his stomach with his legs still in the pool.
Amber looked away after realizing she was looking at his butt. She pulled herself up, turned around, and sat on the edge of the pool deck.
Dom had caught his breath and rolled onto his back. The concrete pool deck left tiny red dimples on his chest and stomach. Amber sat up straight and looked across the pool.
It was then Dom noticed just how skimpy her bikini was.
Water trickled off the straps of her top, ran down her spine, and pooled on the deck around where she was sitting. The light coloured fabric turned slightly pink where her skin was pressed against it.
Dominic felt his body react when he thought of just how shapely her butt was. He sat up to prevent his erection from being visible, and looked over at his sister's chest, still rising and falling as she settled into normal breathing. 'She has excellent posture.' he thought.
She looked over at him and caught his eyes looking at her. He quickly looked away.
"I'll come back in after I get more sun." he said, standing up to walk over to his lounge chair.
"You could get more cucumber water." said Amber, "I made a fresh batch at lunch."
She waded out to the deep end and floated on her back, closing her eyes.
'Was he looking at my chest?' she thought to herself, '... is he looking now?'
He was, but he was telling himself not to. The bikini showed just as much as she'd hoped it would. As she slowly turned while she floated, Dominic couldn't help but sneak a few more glimpses of her chest.
They swam and sunbathed for the next half hour until it was time for supper. Amber had gotten a text from their parents saying they were going out for dinner and she was on her own that night. She threw two frozen pizzas in the oven on her way upstairs to change.
In her room, she played some music on her phone as she dried her hair and slipped out of her damp bikini.
Dancing and bobbing along to the music naked, she felt another slight rush as she idly ran her fingers along her pubic mound. 'I've got time.' she thought, and turned the music up.
She sat down on her bed and let her knees spread wide. She loved the feeling of being naked and exposed while she played with her clit.
She thought about using her vibrator, but it was fairly loud. She only ever used it when she was sure no one else was awake in the house. Still, the thought of Dom hearing the low rhythmic buzz on his way to the bathroom excited her.
She settled on her fingers, which slowly and lightly caressed her mound and hood. She gently slid her fingertips along her outer labia, then bore down gently as she slid her middle finger along her inner labia. She loved teasing herself and working up to the main event. 'Focus, girly,' she reminded herself, 'those pizzas only take 20 minutes.'
She laid the fingers of her left hand flat against her clit, slowly making circular motions while she curled the middle two fingers of her right hand inside her.
She hunched her body over and turned her elbow out, trying to reach as far as her ex boyfriend did when he made her cum from her g-spot. From the first time he'd clumsily found it while they were fooling around on her couch, she was hooked. She could never get the same leverage, but the stimulation she managed was incomparable to what she used to call an orgasm.
After becoming slightly frustrated, she grabbed her vibrator and turned up her music louder still.
The slim machine had a bulbous tip specifically for stimulating the g-spot. She inserted it and turned it on, immediately feeling the waves rushing from her g-spot to every extremity.
She sighed and bore down as her wetness covered the vibrator and her fingers. The movements of her left hand became more frantic and out of sync with the vibrator pulsating on her spot.
She arched her back and threw her head back as a warm wave rushed from her g-spot to the top of her head. She stifled what would have been a loud moan. Her toes curled against the bed and her hand tightened around her vibrator, now working it furiously against her spot. Another orgasm. This time her stifling was less successful. As he checked the pizza, Dominic heard her moan from downstairs.
His body reacted to the sound immediately. 'Woa there, she's probably joking with her friend on the phone.' he thought.
He went upstairs and faintly heard the distinct buzzing sound of a vibrator over his sister's cellphone music at full volume. 'Or, maybe not.'
He concluded he should probably just forget about it and text her to come downstairs for pizza.
A few minutes later they were sitting on the couch, Dominic in his jeans and white T-shirt, and Amber in yoga pants and a ladies tee. Her hair was back in a ponytail and Dom found himself more interested in the shape of her collarbone than the game show channel he'd chosen.
He reminded himself what he heard didn't mean she was thinking about him while she was doing it, and that it was way outside normal for him to be looking at her like this.
Amber stole a few glances at the way Dom's T-shirt clung to his chest and admired how his arms seemed too big for the sleeves. The glow of her orgasms and fleeting fantasies of putting her hands on him stayed with her until Dominic stood up and said goodnight.
"G'night." she said in that same octave she'd greeted him.
Dom got home late after running a few errands on his was home from his parents' house.