Janet didn’t drag her butt out of bed until just before eleven o’clock in the morning. When she got up she stood in front of her full length mirror and studied her image while brushing her hair and trying to decide what to wear on the sweltering summer day. She smiled at the image that she saw in the mirror, she was correct in her appraisal; wearing only a sports bra and boy-toy pants, her usual bedtime attire, she reconfirmed in her mind that she did indeed look pretty damn hot.

Much earlier in the day her Mom and Dad had left for work, but her Mom would be coming back home soon, she’s only working a half day, and that’s the reason why Janet had to get out of bed. She didn’t want her mother coming home and finding her still in bed at noon.

Just as Janet turned sideways to look at her butt in the mirror, out the corner of her eye, she caught a glimpse of a reflection of her brother going past her half open bedroom door. She knew that her brother was the only other person in the house.

There was something odd about what she had glimpsed though. Something wasn’t right. Her first impression, for a split second there, was that John wasn’t wearing any clothes. She had a fleeting glimpse of a lot of flesh. Did she just see his butt? Was her brother walking around the house naked? Oh, I can’t pass up this chance, I just gotta see that, she thought.

She had a vague and distant memory of the last time she saw her brother naked, they were a lot younger. Her brother is a year and a half older then her. Her memory was of her brother standing in front of her in a bathtub. Both were naked and she remembered that his little pee-pee was stiff and pointing straight at her.

She remembered the incident because of the traumatic effect of all the yelling and the crying. Their Dad had walked in the bathroom and caught Janet touching the tip of her older brother’s thingy with her finger.

She remembered her Dad got very angry and threatened to whip her and her brother’s butts if he ever caught them touching each other again. They were never allowed to bathe together again after that incident. Her Dad warned her very sternly to never touch any boy’s thingy again, ever!

She smiled a little smile, if her Dad only knew what she’d learned from her ex-boyfriend about touching boys’ thingies. He’d keel over from a heart attack.

Janet hurried across the room to her bedroom door and yanked the door the rest of the way open and quickly stuck her head out into the hallway. She looked in the same direction that John was heading and her mouth dropped open in surprise.

As John walked down the stairs to the first floor, Janet left her bedroom and quickly tiptoed down the carpeted hallway stealthily following him.

She couldn’t believe what she was seeing. She could clearly see that John wasn’t naked, but besides the socks and running shoes, she couldn’t tell what he was actually wearing.

Janet was fascinated and not just a little turned on, as she watched her brother’s bare ass cheeks undulating as he walked. Damn she thought John has got a good-looking and muscular ass, powerful thighs, and strong back. She felt a twinge in her pussy as she quietly trailed her big brother as he descended the stairs.

When John turned the corner at the bottom of the stairwell is when Janet got to see a profile view of whatever that thing was that John was wearing. She had briefly looked at that particular piece of apparel before when she’d seen it in the dirty clothes hamper but she hadn’t actually figured out what it was.

Now that she saw John wearing it, it dawned on her what it was. It was one of those things that guys wear when they’re playing sports to keep their junk from flopping around or falling out of their shorts. She’d never actually seen a guy wearing a jock strap before.

The jock strap had a triangular shaped cloth pouch in the front that covered John’s dick and testicles. John’s cloth pouch looked pretty full and the material looked stretched to its limits. It didn’t look like John could stuff anything more into that pouch without splitting it open and having everything spilling out.

She was impressed with her brother’s body. She could see everything, well almost everything. What the jock strap hid from view is what she really wanted to see. But at least now she could take seeing her brother’s well shaped and good-looking butt off her bucket list.

Janet leapt down the carpeted steps two and three at a time until she reached the bottom step and then quickly peeked around the corner at her brother’s retreating form. Damn his ass was sexy.

John opened the laundry room door and went inside. His back was facing towards the doorway as he bent over the dirty laundry basket. His bare ass was in plain view as he rifled through the clothes in the dirty clothes basket.

A moment later Janet tried to act casual as she walked slowly and silently on bare feet past the open laundry room door and peeked in at her brother as she passed.

An audible thud filled the hallway as Janet, staring at her brother’s exposed ass, walked right into the kitchen doorway’s frame, hitting it with the side of her head.

“Ouch, damn,” Janet involuntarily let slip out loud as she briskly rubbed the side of her face.

“Hey Sis, have you seen my running shorts?” John yelled from inside the laundry room.

“Ah, no I haven’t. Did you look in the dirty clothes basket?” Janet asked as she stepped into the laundry room doorway. She shamelessly eyed her brother’s physique as she leaned against the laundry room door frame.

“Yeah I looked there, but they’re not in that basket,” John responded as he glanced up quickly at his sister and then when he saw her skimpy attire he shyly and quickly diverted his eyes.

“Did you check inside the washing machine?” Janet asked as she openly ogled her brother’s almost naked body.

John turned sideways to his sister in an unsuccessful attempt to shield his state of undress to some extent. Unsuccessful because by turning sideways, he just gave his sister another profile view, which actually gave her a better idea about how big of a bulge he had in the front of his jock strap. He bent down and opened the washing machine’s door and started rummaging through the wet clothes in the front-loading washing machine.

“Oh wait a minute.., I just remembered that they’re in the dryer,” Janet said as she’d known all along that’s where they were. She also knew there was no way that John could search the front-loading dryer in the small laundry room without turning his back to her and bending over again.

John hesitated; he knew he would expose his bare ass again if he searched the dryer. He waited a moment, he waited in the hope that his sister would walk back into the kitchen. But the waiting time dragged on and on as she just leaned against the door jam and kept running her eyes slowly up and down his body.

Feeling conspicuously embarrassed by his sister’s scrutiny he finally just shrugged his shoulders a little then he turned his back to his sister and bent over and started searching the front-loading dryer.

Janet’s eyes widened and her pussy started getting moist as she stared at her brother’s exposed ass. She couldn’t help but zero in on two areas, the first area was his tightly wrinkled anus, which was on display between his muscular ass cheeks when he bent over and the bulge that his genitals made as they lay hidden from sight behind that tight fitting cloth pouch.

After a moment or two of searching John found the shorts and pulled them out of the dryer, he stood up straight and turned and faced his sister.

“By the way bro, I love the outfit that you’re wearing this morning, you don’t need to cover all that up by putting on a pair of shorts,” Janet said as she shamelessly stared at John’s cloth covered crotch.

“If you really do want a new girlfriend all you’d have to do is go jogging in that thing… you’d have every girl in the neighborhood jogging right behind you and screaming for your phone number.”

John just grunted, but he did get a quick mental picture of girls jogging behind him, yelling and cheering, if he went out running while wearing nothing but his jock strap.

“You should be careful about who sees you wearing that thing. As sexually frustrated as mom is, you should probably not wear that thing in front of her…, but you could wear that in front of me more often. It’s eye candy for a girl and very intriguing.”

“What’s intriguing about it?”

“I seriously doubt that there are too many women that have ever seen a guy wearing one those things before. I never have, I would’ve remembered that. What is that thing anyway, is that male lingerie?”

“It’s just a jock strap.”

“It’s pretty sexy; I mean the way those straps wrap around your butt. It definitely shows off your assets,” Janet chuckled at her own joke as she openly stared at the bulge in the front of John’s jock strap.

“The intriguing part is that large bulge in the front there, which makes a girl want to find out what’s hidden behind that cloth pouch. All in all, it’s a very sexy looking outfit bro.”

“It’s not as sexy as the outfits that you wear,” John said as he shyly let his eyes roamed over his sister’s sports bra and boy-toy pants. He tried, unsuccessfully, to not stare directly at her well-defined camel toe.

“Oh you like this? I like the bra but I think these pants are a touch too small. Not counting the camel toe that you apparently enjoy staring at, every time I bend over these pants crawl up the crack of my ass… when I wear these I always get a wedgie… watch…,” Janet said as she turned her back towards her brother and looking over her shoulder at him as she bent over slightly, “See what I mean?”

John stared at his sister’s newly formed wedgie. His dick twitched uncomfortably in confines of his jock strap.

Janet’s pants had indeed crawled up between the cheeks of her magnificently shaped ass; wedged in so deep that it almost looked like she was wearing a thong. The pants highlighted the crack of her butt and exposed the lower halves of the twin globes of her fantastically rounded cheeks.

“I can see why you get those wedgies. You got a gorgeous ass sis; I don’t know anything in the world that wouldn’t want to crawl up between those fantastic looking cheeks.”

“Awww, you’re so sweet… since you obviously like looking at my butt so much I’ll let you touch it, I’ll let you fix this wedgie for me.., pull the pants out of my crack will you bro,” Janet asked while still looking at John over her shoulder as she bent over even further and wiggled her butt enticingly at her brother.

Janet hoped that John would just grab her pants and pull them completely down. John swallowed hard and then hesitantly reached out with both hands and touched his sister’s ass. He slid the index finger of each hand in between her smooth ass cheeks and the elastic of her silken pants at the top of her wedgie. He slid the backs of his fingers slowly downward over the soft curves of his sister’s ass cheeks as his finger’s downward motion slowly pulled her pants out from between the cheeks of her ass.

“Thanks bro, I owe you one,” Janet said as she stood up straight and smiled at her brother.

She’d felt a thrill in her pussy the instant her brother touched her butt. That didn’t surprise her too much; she knew that she was pretty horny. She reluctantly tore her eyes away from her brother’s jock strap pouch as she turned and intentionally left the laundry room door wide open when she left so that her brother could watch her ass as she walked back into the kitchen.

“Oh and those panties are not too small, they’re just small enough to really do your butt justice,” John offered as he stared at her ass as she walked away.

“Well that settles it then.., if you like these pants then I’ll keep them,” Janet teased.

“Don’t ever tell me to kiss your ass sis, unless you’re willing to pull your panties down so I can,” John teased back.

“Promises, promises… I’ll remind you that you said that when the time is right,” Janet replied as she opened the dishwasher’s door and bent over and started taking dishes out of the rack.

As soon as Janet bent over her pants immediate crawled up between her ass cheeks. She knew it happened and she also knew that her brother was staring at her ass again. She did nothing about it as she stood up straight and stood on her toes as she started stretching to put the dishes in the overhead cabinets.

Damn she was getting hornier by the minute. She could feel the wetness already starting in her pussy from just showing off her ass and legs to her brother. She started seriously considering jumping her brother’s bones. She wondered what his reaction would be if she tried.

John suspected that Janet picked this exact time to do the bending over and stretching while emptying the dishwasher just because she knew that he was watching. He didn’t object at all because he did enjoy the view of her gorgeous ass and legs.

The brother and sister had always bantered back and forth about sex but never to this extent. He stared at his sister’s exposed ass cheeks as he stepped into his running shorts and pulled them up. He reluctantly turned away from the erotic sight and headed for the front door.

++++

The sibling’s sexual bantering had gotten a lot more serious over the past few months. For Janet it got serious after she noticed that John would abruptly leave the room sometimes, even in the middle of a conversation. At first Janet just chalked it up to normal brother and sister stuff, her big brother was just being rude and ignoring his little sister.

It took Janet longer than she thought it should have before she figured out that she was actually the reason why John would leave a room so abruptly.

When Janet started connecting the dots she noticed that John’s sudden departures usually coincided with her parading around the house dressed only in her bra and pants. Before that observation she had never given any thought to how her attire, or lack of, would affect her older brother’s raging hormones. She’d always run around the house in her underwear as far back as she could remember.

Janet mistakenly figured that John seeing her parading around in her bra and pants was no different than John seeing her wearing a bikini. However, she realized later, that was not the way her brother viewed her underwear.

She loved her big brother and hadn’t meant to do anything that would make him feel uncomfortable around her. She didn’t want to hurt her brother in any way. Janet vowed to herself to remember to dress more modestly, she didn’t want to torment her brother.

Janet’s modesty vow didn’t pass the test of time. A week later Janet forgot her modesty vow one morning and failed to wear her bathrobe. She paraded around the kitchen wearing a push up bra and shear white pants.

John had walked in to the kitchen when Janet had her back turned to the doorway and was bending over emptying the dishwasher. Janet heard John gasp in surprise, he stood in the kitchen doorway for a moment not saying anything, and just as Janet turned her head to look at him is when he suddenly spun on his heel and quickly left the room and went straight to the bathroom.

Janet quickly realized her mistake and immediately went to her bedroom to get her bathrobe. She looked at herself in a full length mirror and could see why John left the room so abruptly. She turned around and bent over and looked at her ass in the full length mirror. The crack of her ass and even the lips of her pussy were plainly visible through the translucent white pants, almost like she wasn’t wearing any.

Damn it, Janet thought, John could see everything, no wonder he left so quickly. Janet still kind of giggled to herself over John’s discomfort. It’s a good thing he didn’t see the front of her shear pants, she thought, he might have fainted if he saw her blond bush.

By the time John returned from the bathroom Janet was back in the kitchen and wearing her bathrobe.

She tried to apologize to him for not wearing her bathrobe. She hadn’t meant to wear such a revealing pair of pants in front of him. She felt bad because John wouldn’t look her in the eyes when she tried to talk to him about it and the rest of the day he went out of his way to avoid her.

Janet felt pretty bad about it all. She felt bad, right up to the point that she started noticing that John took every opportunity he had to peek and sometimes even outright stare at certain parts of her anatomy. She constantly caught him staring at her tits, he stared at her ass. She also noticed that he seemed to enjoy looking at her legs and she’d caught him peeking up her skirt, he peeked up her skirts a lot.

Janet finally connected the dots. She figured out what was going on with John. He’d look up her skirt or at her tits or her legs and after only a few minutes, he would start getting an erection. Then John would run off to the bathroom, where Janet surmised he probably jacked off to get rid of his hardon.

Once Janet figured out what John was doing in the bathroom because of the powerful effect that her body had on him then the poor son of a bitch didn’t stand a chance. Just knowing that her big brother had to be fantasizing about her while he jacked off made Janet feel incredibly sexy. Whenever she’d make John run to the bathroom to alleviate his erection her pussy would get moist just thinking about what John was doing in there.

After discovering the affect that her body had on John’s libido she started doing some outrageous deeds just to tease him. A couple of times she didn’t wear any pants under her short skirts and she made sure to bend over when John was behind her or she’d cross or uncross her legs carelessly, or she’d cross them by putting her ankle of one foot on her other knee and allowing him to get a good view between her legs. She’d flash her vertical smile at him and whoosh, John would run to the bathroom.

Janet loved the way that her big brother looked at her when she wore yoga pants or her exercise tights or skimpy underwear. It turned her on to know that the lustful look in her brother’s eyes was for her. Janet challenged herself to do whatever she could to get John’s dick hard and make him have to run to the bathroom and relieve the pressure. To her it was a sexy game. Janet was just having some harmless fun at her brother’s expense.

She’d put her ear against the bathroom door a couple of times after John had rushed in there but she couldn’t hear anything going on the other side. She was very tempted to just open the door and walk in the bathroom in an attempt to catch John jacking off. Her idea, if she ever got up enough nerve, was to have John finish masturbating while she watched, but she couldn’t quite get up the nerve to turn that door knob.

Seeing John wearing nothing but his jock strap changed the game forever. That jock strap turned the tables on Janet. Now she was the one overwhelmed with lust.

The memorable sight of her brother’s naked ass in a jock strap caused her pussy to get moist, very moist. That’s when she decided that she was finished playing games with John. Janet wanted to do more than just tease him now. Her curiosity about her brother’s anatomy demanded immediate action. Now she wanted to see HIS package and she didn’t plan on just looking at it either. She wanted to get her hands on John’s naked butt cheeks too.