Rachel Asks Her Brother For Help

Disclaimer: All characters are 18+. This is a slower story with buildup, don't read expecting for a quick fix. Enjoy!

Rachel had always loved fashion. When she was younger she would dress up, asking for the prettiest pink princess dresses for her birthday or begging her mom to take her to the mall. Now that she felt like she was all grown up at 19, she figured it was time to start dressing more mature and to ditch her old clothes she'd throw on for high school. Now that she was going off to a university about 40 minutes away from home, Rachel wanted new clothes to "reinvent" herself. She was always too focused on her studies and never had time for anything else.

The good news was that her mom, Iona, loved fashion as well. With two walk in closets in their house mostly filled with Iona's things, Rachel should've had a plethora of outfits to choose from. Iona would constantly change styles and shoved her old clothes into the back of her closet, never to be seen again.

The bad news was that Rachel couldn't fit in any of her mom's clothes. Rachel was only two inches taller than her mom at 5'7", she was heavier than her. Iona's jeans never comfortably went over Rachel's plump ass and some of her shirts never completely covered her stomach. Thankfully, they were both C cups, but all of Iona's bras rarely reached all the way around Rachel's back.

While Rachel could've just bought her own clothes, she quite liked Iona's old outfits, whose styles' didn't seem to be sold anymore. University was also expensive. Very expensive. So outside of spending money on textbooks, school supplies, parking, and much more, she didn't have any extra for clothes.

Thankfully Iona's clothes were in various sizes, and with just a little weight loss Rachel felt that she could fit in some of them. But she just loved food too much and working out was exactly that, too much work. She had tried before, feeling that it was just too hard by herself. She did have one person she could turn to. Her older brother Flynn.

Flynn was 23, fresh out of college and working as a physical therapist. He had been a little chubby during high school, but at the end of his four years in college, he was in great shape. If anyone could help Rachel slim down, it would be her brother. They'd always had a close relationship, even going as far as to talk to each other about their dates as well as some more... intimate details. Flynn had more than once shamefully thought about his sister getting felt up while stroking his cock right before bed. He thought she was beautiful with her nice round ass and a handful of tits. Rachel had modeled her mom's clothes for him before and he had more than once had to hide his erection after seeing her bend over in a miniskirt or the one glorious time the buttons had popped from a too small blouse.

--------------------------------

He was working out in the gym when Rachel came in, sporting some flowy shorts and a tank top with a built in bra. Their summers got hot at times and he could see sweat glistening on her forehead, at the edges of her black hair which was pulled back into a ponytail.

"Hey Flynn," she said, covertly admiring his straining muscles.

He finished standing up out of his squat and dropped the bar back onto the rack before replying.

"Hi Rach," he said grinning, happy that something broke the monotony of his workout but mostly because he truly enjoyed talking with his sister.

"So... I've been thinking. I want to lose weight so I can fit into mom's clothes."

"And..." Flynn replied, waiting for her to continue.

"And I was hoping you could help me. Keep me accountable and whatnot."

Flynn laughed. "You sure? Remember what happened last time?"

Rachel, thinking about how the last time she asked him to help left her running to her room crying, nodded her head.

"I've got four months till university starts up and I'd like to be able to wear mom's stuff. Look like a proper college girl and whatnot."

"It's gonna be hard," he said thinking. "If I do this, then no quitting. You do it until you reach your goal or you don't do it at all."

"You have to commit as well then. No quitting on me."

Flynn stuck out his hand at Rachel, happy to be able to help his sister out. She didn't ask for much. Rachel shook his hand with a smile on her face, blissfully unaware of where this agreement would take them.

--------------------------------

"Try and keep your back more straight," Flynn instructed, standing on Rachel's toes. She'd wanted to start with abs even though he had planned a full week split full of a mixture of weightlifting and cardio. He didn't know where she got the notion that abs and legs were all that mattered when women trained. At least she had shown up in something cute. She'd decided to spend her hard earned money on some quality olive green biker shorts and a matching sports bra. With pockets of course as she'd proudly showed him. She figured that if she had to suffer, at least she would do it in comfort and style. The shorts were high waisted and had a 2 inch inseam, showing off her longer legs. It had a seam in both the front and back and accentuated her butt. Her top completely covered her cleavage and gave her some much needed support.

Flynn had been impressed with the quality of the clothing, "inspecting" it for any flaws but finding none. There weren't any visible panty lines either. He spent half the workout trying to find any, impressed at the quality of her shorts. He knew she was wearing panties too; Rachel wasn't the type of girl to go commando. But Flynn on the other hand, was the type of guy to go commando. He was in a gray t shirt and black shorts, refusing to change his normal workout clothes even if his sister starting working out with him. His briefs felt too constricting while working out.

He was a shower, not really a grower and most of the time it was too uncomfortable to tuck his cock into his waistband, and he risked flashing cause his head was always poking out. Instead he just let it hang, usually down the left side of his shorts. It left a little bit of an outline, a detail that Rachel almost immediately noticed, blushing at the fact that she did. Flynn would have to be careful about how he demonstrated his planned lifts.

Their workout ended with Rachel face down on her yoga mat, exhausted by just a 30 second plank. Her arms were up and her legs spread, giving Flynn a nice view between her legs, telling himself he was just checking out her new clothes. He concluded that they truly were of high quality as he couldn't see even a hint of cameltoe despite the shorts being pulled up tight.

He patted her back, his hand touching the slightly sweaty part between her shoulder blades and bra straps.

"That was a good first workout. Make sure to refuel with the meal prep I left you in the fridge so you're ready for your cardio session in the afternoon."

Rach just groaned in response, comforted by the fact that at least she could wear her cute new running shorts which would pair nicely with her mom's old sports bra. A looser black pair of shorts with some blue accents and a light blue sports bra that showed a little more cleavage than the one she was currently wearing. She hobbled inside to see what Flynn had made her.

--------------------------------

After a trip to the mall with her friends she'd gotten back home to eat her dinner, her last meal for the day. She sat at her regular spot between her mom and Flynn, her younger brother Max, and her dad, Carl, sitting across from her. Despite their one year age difference, Max was the same grade as Rachel and was going to the same university as her. The family had been surprised at his choice; he was a bookworm with almost perfect grades and could've gotten into more prestigious schools with his accomplishments. He had stated that he wanted to be close to home, but Rachel felt that he wanted to be close to her. They had a close relationship just like between her and Flynn, albeit a little differently. They'd talk about books and she'd ask him any questions that popped into her mind. They strayed away from talking about dating, with the exception of his ex girlfriend who he dated right after turning 18, but that only lasted a couple months.

Everyone stared at Rachel's plate as she sat down with it. Iona was a wonderful cook, part of the reason why Rachel couldn't fit into her clothes. The family was sitting there, large plates of prime rib with various sides, even Max had a sizable chunk. Rachel's plate was dwarfed in comparison, just a small mound of rice, a couple slivers of prime rib, and the other half of the plate filled with unseasoned green beans. Rachel looked up at her family.

"Don't ask," she grumbled, digging into her meager meal.

An hour and a half later, Rachel and Flynn were stretching on the sidewalk in front of their house. Flynn had reluctantly put on compression shorts since they were running, though he had to stuff his cock down the left leg of the shorts and still left a slight outline when he brought his left leg forward. Rachel had noticed again.

"Just an easy half mile walk to warm up, a mile jog, and then a half mile cooldown walk back home," Flynn said.

Rachel nodded, trying to psych herself up for the workout, already thinking about new cute running sets she would need if she regularly ran.

The first walking part started off well. Only halfway through the mile Rachel was breathing heavily, not that Flynn really noticed. He was too busy watching his sister's breasts bounce in her mom's sports bra to notice. This pair didn't nearly have enough support and he kept glancing over. He probably could've flat out stared at her chest with how focused she was.

She'd barely recovered by the time they got back to the house. Still exhausted, she looked into her brother's green eyes and nodded.

"Thanks," she said sincerely.

He simply nodded back, eyeing her ass as she walked in.

--------------------------------

The next few weeks consisted of more of the same. Sometimes weightlifting, oftentimes cardio, Rachel made sure to look cute doing it. Flynn certainly thought so. She had noticed his eyes wandering but tried to tell herself that he was just watching her form, definitely not thinking about it when she laid in bed at night, keeping her vibrator company. Rachel didn't feel much change, although her friends seemed to think so.

--------------------------------

"Rachel! You look so good!" Ann squealed, getting her first good look at her since they'd graduated.

"Aww you think so?" Rachel replied, giving her a 360 in her skirt, a glimpse of her pink panties visible for a second.

"Yes you have totally slimmed down Rach."

Rachel blushed. "Oh stop it. You look so good too!"

Ann gave her the finger and laughed. "Quit it, hurry up and let's go."

The two girls were headed to a new restaurant downtown, a fusion burger place whatever that means. They spent their time catching up on gossip, talking about who was breaking up with who before college or who was trying to do long distance. Ann was headed to a college across the country, so they wanted to spend as much time together before she left.

They were at the restaurant, Rachel sipping on her water when Ann said something that made water go out her nose.

"You've been what?" Rachel sputtered, grabbing napkins to wipe up the water.

Ann just laughed as she helped her clean up. She'd been talking about her new boyfriend she met at her college tour. They discovered they were from the same hometown and that they were in the same dorm building and were looking forward to the proximity. She considered this a head start of sorts.

"I've been swallowing his cum," Ann said, still smiling.

Rachel looked back her eyebrows raised.

"It's good for you! I read it in the latest magazine. Lots of vitamins, and a good boost of protein. Which you look like you could use some since you've been working out so much."

"Good one," Rachel said rolling her eyes. "And where do you propose I find some?"

"Just get a boyfriend, easy considering how good you look."

Rachel rolled her eyes again. "Just for him to leave for uni after the summer? Good one."

They changed the subject but for the rest of the day, Rachel had an absentminded look on her face, like she was seriously considering something.

--------------------------------

Rachel opened the fridge for the third time. Still nothing. She stuck to the workout plan, the meal prep, and she could see progress, but oftentimes she was still left with a rumbling stomach. She just needed something, small and healthy to satisfy her cravings. Something with protein because according to the app she was using to track her calories, she hadn't been hitting her protein goals. Max had suggested taking extra vitamins as well, possibly one of the causes of still feeling empty.

She sighed, thinking about where she could possibly get that extra protein. Maybe what Ann said had some merit to it. But where was she going to find a boyfriend? Or anyone to supply her with... semen? That was when Flynn walked in, followed by Max.

"Looking good," Max said, giving her a thumbs up. He had helped her understand the more sciency parts of working out, which she found really helped. She nodded at them, still frustrated at her protein goals and hunger.

Both brothers' eyes lingered on Rachel as she went back up the stairs, her butt looking only a little smaller than before but the shape much improved.

--------------------------------

"How do I look?"

Rachel asked Flynn to give his opinion on how her mom's clothes fit on her, something she'd always done before. The outfit in question was a tight black mini dress, leaving not a lot to the imagination. Still, Flynn wondered if she was wearing anything underneath, since he couldn't see any bra straps or panty lines. If she bent down just a little bit mo-

Her head snapped, green eyes looking at Flynn and waiting for his response while his eyes snapped back up, hoping she hadn't caught him staring at her ass.

"Good! This one fits you a lot better now."

They'd been at this for 30 minutes now, Rachel modeling all different kinds of outfits. From skirts to camisoles, she'd even worn one of her mom's old bikini tops, but it had underwire and covered her up well, much to Flynn's disappointment.

"I know... but I think there's still a little more to be desired...." she trailed off.

"Is... something wrong?" Flynn asked, seeing the look of concern on her face.

"No," she said hesitantly, flattening out the dress.

Flynn went up to her and rested his hand on her shoulder.

"Hey. You can tell me anything. We're in this together."

She blushed, both at her thoughts and his closeness.

"There's no quitting for this. We're both in it for the long haul. Plus it's been a really good motivation for me to do cardio too. I'm still breathing a hard when I go up the stairs, but at least it's a little better now."

"Well," she stuttered out. "I haven't been hitting my protein or vitamin goals and Ann kind of mentioned something that might fix it."

He nodded, gesturing for her to continue.

"It's just an idea, I mean I haven't really been thinking about it too much, she just seemed so pushy about it and was talking so many great things about it."

He continued nodding, wondering where this was going.

"Semen," she blurted out. "Ann says it's a good source of vitamins and protein. And it tastes good. She said it tastes good." She continued rambling on. Looking up, she could see the redness growing on her brother's face, his understanding growing as well. Her proclamation seemed to shock him. He went over to the couch and sat down, hands over his mouth in a thinking position.

"Okay," he stoically said.

"Okay?" She asked back.

He confirmed his answer.

"Uhh how.." he trailed off as his mind began to wander off, fantasizing about cumming in his sisters mouth. About cumming on her face and watching her clean it up. About cumming in h-

"Mix it in my food."

Flynn snapped out of his trance, nodding. Of course.

"How about breakfast then. I can mix it in with your milk."

She nodded, both of them blushing.

"And tell me how much," she added. "I need to find out how many vitamins I'm getting."

"Okay," he said, erection plainly visible in his white shorts. Of all days to go commando, he thought.

Rachel watched as he passed by to go upstairs, eyes glued to his member. Her vibrator trembled upstairs, getting ready for a long session that night.

--------------------------------

After waking up, Rachel took her time choosing her outfit. What screamed, thank you for letting me eat your cum big brother. Yoga pants with a tight jacket, showing off her figure and proving that she was dedicated? A low cut shirt to give him a show? Her birthday suit since they were getting more intimate? She needed more clothes, shaking her head as she had nothing to wear.

Walking into the kitchen, she spotted Flynn there in his pajama pants and a ratty t shirt. Without underwear again she noted. They made eye contact and quickly looked away. Rachel at the ground and Flynn at her legs. She'd opted to go with a classic look, an oversized pajama shirt she'd gotten a long time ago and panties. Boyshorts so they covered up a bit more if her shirt got too high.

"Mom and dad?" She asked.

"Work."

"Max?"

"At his friends."

"The milk?"

"Not yet."

She nodded.

"I'll go do it now. I figured I'd wait till you were up. So it was fresh," he said, still staring at her legs, wondering what she had on underneath.

"Thanks," she said, eyes still glued to the ground, thinking about what he was going to do.

He grabbed the glass and headed upstairs. She sat down to eat her four eggs and spinach mix. Upstairs, Flynn had went to Rachel's room, hoping she wouldn't come up. He thought it'd be easier in there. He laid on her bed, pants down, milk on the side table and began stroking, absentmindedly looking at the photos on her wall. He could still smell her perfume, a nice floral scent. He looked around and noticed the discarded outfits on the ground, noticing a couple panties too. He reached down and grabbed two of them and wrapped one of them around his cock. The other he brought to his face and sniffed. It'd be a lie if he said he'd never done this before, but this time it was a lot more purposeful. It quickly led him to orgasm and he dropped the panties, grabbing the glass of milk and pointed his cock at the glass. He came. Hard. The combination of her perfume, the panties on his cock, and the thought of her eating his cum led to a most powerful orgasm. He milked the last drops of cum out and wiped the rest of it on her panties, she'd be washing it anyways.

Seven minutes later, Flynn came downstairs and handed the glass to her.

"I tried to mix it well, but uh, there might still be some chunks."

"And how much is in there?" She asked.

"Oh sorry Rach, I didn't measure. It happened too quick."

"That's alright," she said a little disappointed. She put on a brave face and started chugging the milk.

Flynn felt his cock twitch, ready for round two. She finished the glass and put it back down on the table. It tasted, different. A little saltier. She couldn't help but take to it, never really liking milk in general, but this concoction was palatable.

"Thank you," she said to Flynn. "I know it's kind of unusual but I think the vitamins will really help."

He just smiled and nodded. "Anytime."

They split up into their respective rooms, Flynn going for another round and Rachel abusing her trusty vibrator again. They didn't see each other till the next day.

--------------------------------

The next few days went by quickly, every morning would lead to the exchange happening and then both of them going back to their rooms for a bit. But their workouts seemed better. The two siblings acted closer, most notably Rachel was lifting more weight and not getting hunger pangs anymore. She would joke that it was the extra supplements she was taking and Flynn would look embarrassed. Her parents and Max even noticed a difference, telling her she had an extra skip in her step and that she kind of looked like she was glowing. Her mom asked if she could take what she was taking, making Flynn's dick twitch. He tried to laugh along with the others.