Mia was finishing her junior year of college and planned to stay out of town at school for the summer rather than coming home as usual. Her parents were disappointed that their daughter was growing up and establishing her own life without them even though it was less than one hundred miles away. Mia was excited about her cutting the cord with her parents and planned to move in with a couple of roommates. They had it all planned out. They would all get jobs to pay their portion of the rent. They could easily afford a cheap apartment if they split the expenses among the three of them.
Things rarely work out as planned and this was the case with Mia and her friends. One friend backed out because she decided to drop out of school and the other decided to go back home from the summer when she and Mia couldn't find an acceptable new roommate. Now that she was left stranded, Mia had no other choice than to go back home for the summer. Her parents were thrilled and welcomed her back with open arms.
However, Mia's brother, Oliver, wasn't as pleased. He was a freshman at a local college still living at home. After Mia went away to college, he essentially became an only child and enjoyed having the upstairs of the house mostly to himself. Oliver was kind of a nerd, a little overweight, and wore thick glasses. He spent most of his time on his computer trying to become a programmer or playing video games with his friends, either at his house or online. He had a job at a national electronic store chain in the mall. His friends liked going to his house because he had the upstairs to himself and it was like having his own apartment, in his mind anyway.
If Mia was home, it would ruin his freedom. Oliver would have to share their Jack and Jill connecting bathroom which he hated. Mia took forever to shower and get ready which usually led to them fighting over the bathroom. She wasn't as neat as Oliver either. Mia would leave her towel on the vanity, her long brunette hairs would clog up the shower drain and her beauty products took up too much space.
Oliver's friends didn't mind when Mia was home because, being nerds themselves, they all had crushes on her. While she wasn't a beauty queen, Mia had a natural beauty about her, like the typical girl next door. She didn't wear a lot of makeup but didn't need it to look pretty. She has a slender figure and while her breasts were on the smaller side, they were firm and pert. Mia always wore booty shorts that showed off a firm, round ass, and her cheeks would often be hanging out the bottoms. She ran track and cross country in high school so she had well-defined slender legs with some muscle definition in her arms and shoulders too.
Mia knew Oliver's nerdy friends liked her and would sometimes tease them by wearing her bikini around the house in the summer while utilizing the family's in-ground pool. Mia suspected that Oliver and his friends might be virgins or if they weren't they didn't have a lot of sexual experience She never saw them with girls or heard them talking about dating anyone even though they were all about nineteen. She knew her brother and his friends had prom dates but they didn't appear to have any long-term relationships.
Mia's parents were always asking her to set up her brother with dates with her friends but that wasn't as easy as it appeared. Oliver was awkward around females and Mia's friends liked to party and had boyfriends of their own. If her brother liked sitting around the house on his computer or playing video games, what was she supposed to do? She tried a couple of times but nothing ever came from it. Her friends wouldn't even consider going on one date with Oliver.
Oliver and Mia were like any brother and sister, they had their moments when they were close and moments when they were arguing. Oliver liked the fact that Mia and her friends would spend a lot of time at their house during the summer using the pool. He had crushes on a few of her friends over the years, enjoying seeing them in their bikinis or their nightgowns when they spent the night. Mia had a live-in computer geek to help her every time she had problems with her laptop. He was a nice guy too.
Their most frequent area of disagreement happened when one of them would lock the door to the bathroom to ensure their privacy from their sibling's bedroom and then forget to unlock it. They fought over that lock all the time. There was nothing more frustrating than needing to use the bathroom only to find the door locked and having to go in through the other bedroom for access. The problem was worse now because both of them got out of the habit of locking their bathroom doors or unlocking them if they did lock both doors.
Things were fine between the siblings for the first week or two as they both adjusted to Mia being home again. There weren't the usual fights over the bathroom until Mia got an office job for the summer whose hours were almost the same as Oliver's on most days.
One morning, Mia was getting ready in the bathroom doing her hair and makeup which was taking longer than Oliver liked. He kept pounding on the bathroom door telling her to hurry. All he wanted to do was brush his teeth and comb his hair. Mia explained that the lighting in the bathroom was better for applying makeup but her brother didn't care.
After hearing her brother complaining for several minutes, Mia opened the bathroom door so they could share the vanity. Oliver was stunned when he saw his sister standing in her above-the-knee skirt, pantyhose-covered legs, and white lace bra. While he couldn't see his sister's breasts, he saw plenty of cleavage and the lace teased more exposure. Mia didn't think much of it because her bikini top showed off more, besides, Oliver was her brother. He had seen her at her worst while sick or when she had braces or having a bad day.
He could easily check her out without attracting attention by watching her reflection in the mirror. When she was done, Mia left her side of the bathroom door open and Oliver kept peeking in to see her putting on her blouse and jewelry. He could see when she sat down on the edge of the bed to put on her shoes. Mia crossed her legs in a very unladylike manner which allowed Oliver to see up her skirt right to the cotton gusset of her pantyhose. He wasn't sure, but it looked like she wasn't wearing panties under her hose because he thought he could see her bush. He couldn't help but think how nice his sister's legs looked encased in pantyhose.
Thankfully, Mia rushed out of the house so Oliver didn't have to hide his erection. He felt bad for looking at his sister like that but he was nineteen and easily got an erection over less than he saw of his sister. Sometimes, he would get hard for no apparent reason at all. After that morning, he seemed to look at his sister differently than before.
After their parents were already in bed late at night, Mia and Oliver would sometimes watch TV together. There were a few programs that they both enjoyed and it was more fun to watch them with someone on a big-screen TV than alone on their laptops. Mia was used to dressing casually in front of Oliver, after all, she had done that for years, not thinking anything of it. There was something different about Mia now though. Maybe it was because she was older and more mature or maybe it was because he was nineteen, sexually inexperienced, and constantly horny but he was now more distracted by his sister.
Mia didn't think twice about wearing a comfortable chemise without realizing that sometimes Oliver could see through the material to her panties or if she leaned over in front of him that he could see her perky breasts. It was a silent torture for Oliver, especially when it required him to hide an erection. Even if Mia was wearing cotton pajama bottoms, he could still see her panties or her ass if she was wearing a thong. Oftentimes, she would pair her pajama bottoms with a tank top without a bra and Oliver would catch just a hint of her brown areola and hard nipples through her top. He loved how her breasts would jiggle when she wasn't wearing a bra.
Oliver tried to keep from checking out his sister and would often reprimand himself for looking at her like that. Feeling guilty about getting sexually excited by his sister didn't stop him from jerking off after seeing various exposed parts of her body. He had to relieve the pressure building in his balls and he didn't have a girlfriend to help him out.
