Sharing a Bathroom with Ashley

Hey everyone. My name is Parker. I'm a 19-year-old college sophomore. I live with my older sister, Ashley. She's 21 and a senior. Our parents decided it'd be best for us to share an apartment for my first and Ashley's last two years of college. It saves money, and she and I get along great anyway, so there was no reason not to. Our apartment is somewhat small. It's got a main living space, a kitchenette, two bedrooms, and one bathroom. The bathroom has two doors, each leading to either of our bedrooms. Sharing a bathroom with Ashley was surprisingly easy. We'd talked about it before I moved in and devised a morning schedule to follow so that we wouldn't be fighting for bathroom time. It worked perfectly, that is, up until around three months ago.

It was a Wednesday morning, and I woke up around 8:30. I had class at 9:00, so I was in a bit of a rush. I knew that Ashley would be at her 8am class and wouldn't be done for the day until a little bit after lunchtime, so I didn't even bother knocking when I walked into the bathroom. To my surprise, however, I was greeted with the sight of my sister standing at the sink brushing her teeth. She was wearing nothing but a white cut-off tank top and a bright yellow thong. Now, I had seen Ashley in more revealing bikinis before, but there's a time and place for that kind of attire. Seeing her in this state of undress in our own apartment caused something in my head to tick.

I guess now is as good a time as any to describe how my sister and I look. Ashley's about 5'5" with pale skin, brown hair, and green eyes. I know from doing our laundry that she wears a 36C bra, and her body is in great shape from doing multiple sports in high school and club soccer in college. My friends used to call her "Assley," joking about how nice her ass was (or, I guess, is), and while I never verbally agreed with them, I certainly didn't disagree, so catching a view of her in that thong was enjoyable, to say the least. I'm 6'2", with pale-ish skin (slightly darker than Ashley's), light brown/dirty blonde hair, and blue eyes. I'm in decent enough shape, though my body is not quite as toned as Ashley's.

"Oh! Uh, good morning Ash," I said in a confused tone, "Why aren't you at your 8am?"

Ashley jumped slightly at my unexpected intrusion, then turned to face me, toothbrush still in her mouth. "Morning, Parker!" she replied, "Yeah, I forgot to tell you, I dropped that class. I totally bombed the first test, and since it was just an elective I don't need for graduation, I just decided to drop it. Sorry I didn't mention it."

While she was rinsing out her mouth, I responded, "Well, I've still got class at nine, and if I'm not mistaken, so do you. Puts a bit of a wrench in our morning system, doesn't it?"

"Yeah, I'm sorry, I guess I didn't think that far ahead," she said, "But I really need to shower. Can I take one now, and then you can get in while I do my makeup?" I was initially surprised at her suggestion. In the year-and-a-half we'd been living together, not once had either of us used the bathroom while the other was taking a shower - we always waited. Why was she suddenly so comfortable with all of this? Well, I certainly wasn't going to argue with it, I was happy enough getting to look at my sister in her underwear.

"Okay, that's fine with me, just make it quick okay? I think we're both in a rush, here," I said.

"Great," Ashley replied. Then, she moved her hands to the hem of her tank top and started lifting it up, right in front of me. When about half of her under-boob was exposed, she paused, looked at me and said "Well, turn away so I can get in the shower, doofus." I was momentarily stunned by the view of her incredibly tight tummy, and I'm a complete sucker for under-boob. But my sister's? I knew I shouldn't be getting turned on by it, but the growing tent in my boxers said otherwise.

"Right, sorry, let me know when you're done so I can hop in," I said as I reluctantly turned away and walked back into my room. I left the door to my bedroom slightly ajar and sat at my desk, which gave me a slight view of the shower, with its opaque glass walls and door. The bathroom is laid out such that the shower is right next to the door leading to my room, the sink is right next to the door leading to Ashley's room, and the toilet is in the middle. That also meant, however, that Ashley could see me at my desk if she decided to look out from the shower at a particular angle. I waited until I heard the water running and the shower door close, then scooted my desk chair over slightly for a better look. Even the mere sight of my sister's naked silhouette through opaque glass caused my heart to race and my erection to grow. I began to lightly stroke myself over my boxers at the thought of the situation. When I was just getting into it, though, I heard the water turn off. As quick as I could, I moved my chair back to my desk, out of sight of the shower. I heard the shower door open and close, and then Ashley's head peeked through my doorway.

"Shower's all yours," she said. I looked up at her and saw that she was, in fact, still naked. About a third of her torso below her head was visible in the door, and she was using one of her arms to cover her boobs while she used the other to prop herself on the door frame.

"Okay, thanks Ash," I replied as nonchalantly as I could. I stood up, sporting a pretty obvious tent in my boxers. I think I saw her take a quick glance down at it before she retreated to the bathroom. When I walked in, she had wrapped herself up in a towel and was at the mirror, doing her makeup and hair. I reached into the shower and turned the water back on. It didn't take long for it to get back up to temperature. "Ahem," I said, "A little privacy?"

"Oh, don't be such a prude," Ashley replied, "I'm not looking, and as long as you don't take ages getting in and out of the shower, I won't see anything. Besides, it's not like I haven't seen it when we were kids."

Okay, I thought, so that's how she wants to play this. With that, I dropped my boxers to the floor, stood there for a beat, and stepped into the shower. I'm almost certain I saw Ashley peek at my exposed penis out of the corner of her eye. That was about as interesting it got that day though, as Ashley was already gone when I got out of the shower. I wonder if there's a way I can push this further, I thought to myself.

I woke up the next morning at around seven. I didn't have morning classes on Tuesdays or Thursdays, so usually I liked to take the mornings slow, waking up around ten. Not today, though. Remembering the events of yesterday, I walked into the bathroom, hoping I'd get to see Ashley again. To my delight (and surprise), Ashley was standing at the sink again, this time wearing only a white lacy thong. I had a direct view of her bare side-boob, and I could see her slightly stiff pink nipples surrounded by quarter-sized areolas in the mirror. I leaned against my door frame and cleared my throat.

"Oh, shit, uh, good morning," Ashley said as she moved one of her arms to cover her boobs. "You're up early today!"

"Yeah, I figured I'd try getting an early start today," I said, "Try to make use of the morning since I don't have class till 2:30." I should mention that there was a good-sized tent in my boxers yet again, half from morning wood, half from the sight of my sister in nothing but a thong. "So, I'm guessing you sleep that way, then?"

Ashley seemed perplexed at my question at first, then a look of realization came over her face. "Oh, topless? Yeah, usually. I just throw on a tank top in the morning if I know I'm going to see you. Otherwise, I go tits out." She said that last bit playfully with a goofy smirk on her face.

"Oh, okay," I said. "Well, I'll leave you to it, then. Let me know when you're done with your shower."

"Sure thing," she replied. I walked out of the bathroom and sat at my desk. I left my bathroom door a little over halfway open, so that if I leaned back in my chair, I could see Ashley at the sink. She had lowered her arm again, and I could see her bare breasts from the side. I was already rock hard, so I pulled my boxers down and started stroking my cock as I watched my sister at the sink. Ashley finished at the sink, and started to turn towards the shower. I leaned back forward just in time to hide back behind the door without her noticing. I heard her turn the shower on and step inside, and leaned back in my chair again to watch her through the shower door. As I stroked, several drops of precum came from the tip of my cock, providing better lubrication. I was pretty steadily stroking myself when Ashley stopped the water and stepped out of the shower. Luckily, I had leaned forward again to avoid being caught watching her. What I didn't anticipate, however, was Ashley going immediately from the shower to peeking her head around my door. She got an eyeful of me sitting in my chair, boxers around my ankles, hard cock in hand, stroking away.

"Oh! Um, shower's all yours," she said. But she didn't immediately avert her eyes from the impromptu show I was giving her. She lingered in the doorway for a bit while I feigned trying to cover myself up.

"Jeez Ashley," I said in about as good of an annoyed voice as I could muster, "Maybe knock next time?"

"I'm sorry," she said as she ducked back into the bathroom. I pulled my boxers up and followed her in immediately, getting a good view of her ass before she wrapped herself up in a towel. I stood near the shower as I waited for the water to get back up to temp, which again didn't take long. Without saying anything, I pulled my boxers down and stepped into the shower. Through the glass of the shower, I could see Ashley take her towel off and return to the sink counter, then start putting her makeup on. I jerked off in the shower, using Ashley as inspiration. When I came, I let out a couple of low grunts as my cum sprayed against the shower wall. I saw Ashley turn slightly in my direction. She had to have seen me jerking off. By the time I was out, Ashley was gone again. Well now she's seen my hard cock, and I've seen some TnA. Things are progressing nicely, I thought to myself.

The next morning, I woke up with a hardon already. Classic morning wood. I walked into the bathroom and saw Ashley at the sink wearing a black cropped tank and a neon pink thong. "Morning Ash," I said as I walked up next to her.

"Morning," she said after she spat out her toothpaste.

"Decided to cover yourself up today? Glad some modesty found its way back into you," I joked as I tugged at her tank top.

"Oh ha-ha," she said mockingly. "Well, unlike yesterday, I actually knew you'd be in here this morning, so I put something on. Took me an extra minute or two to actually find it in the bottom of my hamper, though."

"Oh, poor you," I replied, "Your precious two minutes." Then I got an idea. "Well, I if it really is too much of hassle for you to put on a shirt just to get ready in the morning, you could just not worry about that. If you want to just go topless like you were yesterday, feel free. I don't mind if you don't mind." I couldn't believe the words coming out of my mouth, but I wasn't exactly thinking with the head on my shoulders.

"Well," Ashley said, "I guess it wouldn't be anything you haven't already seen anyway. That, and it would save me some time. It adds up, you know. I'll consider it."

"Yeah, no pressure or anything," I said, "I just want you to be comfortable in the mornings is all." I stepped away and reached for the shower door, "Do you mind if I take a quick shower?"

"Sure, go for it," she said, "but try to hurry, I still have class."

"Will do," I said, and turned the water on. As the water was getting up to temperature, I made a point of taking my boxers off a few moments before the water was hot. I stood just outside the shower for a solid fifteen seconds, completely naked in front of my thong-clad sister.

"Looks like you're already getting comfortable," she said in reaction to my nudity.

"Well, I figured I would take the first step," I replied, "you don't mind, do you? Like you said, you kinda already saw it all yesterday. I personally don't think nudity is such a big deal, at least in the bathroom."

"Huh, I guess you're right," Ashley said, "The bathroom is like, the one place where it's the most okay to be naked." With that, she grabbed the hem of her tank top and pulled it up and over her head, exposing her breasts directly to me. "Ahhhh, so freeing," she joked. During this exchange, I noticed her eyes darting from mine to my dick, just as mine were darting from hers to her nipples. Shortly afterwards, I got into the shower.

"Okay, I'm about done in here Ash," I called out. Suddenly, Ashley opened the shower door.

"Don't turn the water off, I'm going to get in right after you," she said. I stepped out of the shower, making a conscious effort to not poke her in the stomach with my hardon. I grabbed my towel off the rack and as I began drying myself off, I turned just in time to see Ashley pulling her thong down her toned legs and stepping into the shower. I caught a few brief glimpses of her pussy, which appeared to be clean shaven.

Holy fuck, I thought, a couple days ago she forgot to tell me about her class, today she willingly showed me her tits and pussy. And she was definitely eyeing my cock. This is going to be interesting.

The next day I woke up pretty early and headed into the bathroom to see Ashley topless again at the sink, wearing a light blue fabric thong. I didn't think I'd be getting tired of that view any time soon.

"Morning sis," I said to her.

She turned to face me after spitting out her toothpaste, giving me an unobstructed view of her tits again. "Good morning, Parker," she said with a smile.

"I'm glad to see you're taking advantage of our new 'comfortability' arrangement," I said, my eyes darting back and forth between her nipples.

"I sure am," she said, "And you're sure you're okay with this? It's not weird for you?"

"Not in the slightest," I said, "In fact, since we're effectively sharing the bathroom at the same times now, I think it would be cool if we turned this room into our own little nudist colony. Just a place to be completely comfortable wearing whatever we want - even if that's nothing. What do you think?"

"Honestly, I was thinking something similar," Ashley replied. "I couldn't help but notice your - what do guys call it - morning wood?" She looked down at the tent in my boxers. "I can't imagine it's very comfortable being cramped in your underwear like that. So if you wanna lose the boxers, I've got nothing against it."

"I will definitely take you up on that offer," I said with a smile. I pushed my boxers down, and my hardon sprang up from the waistband. I gave it a few light tugs and a gentle squeeze, all while Ashley was looking directly at it. "Ahhh, it's nice to have it out in the open. Feels like it can breathe."

"Ha, I'm sure it is nice. I wouldn't know, though. Girls don't exactly get morning wood," Ashley said.

"Well, at least you don't have to worry about getting squeezed by your underwear!" I joked. Then, I walked up next to Ashley at the sink. "Speaking of your underwear, though, I'm a big fan of the thongs. They make your butt look really good," I said as I made a point of looking back at her ass.

"Thanks! I really like this pair especially. They're so soft, they feel great to wear." She said, adjusting their waistband.

"Really? They look soft," I said, "Do you mind if I feel them?"

"Sure!" Ashley said, "Here." To my surprise, Ashley bent at the waist slightly and took her thong off in one smooth motion. Then she held them up for me to take. I happily took them from her and ran them between my fingers, feeling the silky-smooth fabric. This, and the fact that I was now totally naked right next to my equally naked sister, caused a huge glob of precum to drip from the tip of my cock onto the sink counter.

"Wow, these are super soft," I said, "I wish I had some underwear that were as soft as these." I looked in the mirror at my sister's naked body and confirmed my earlier suspicions that her pussy was clean shaven. "They probably feel even better since you shave yourself down there."

"Exactly," Ashley said, subconsciously running a hand down between her legs to feel the smoothness of her mound. "I noticed you keep yourself pretty hairless too. Too bad you won't know how it feels to wear them, though. They're way too small for you, and, well, you've got a pretty big dick. No way you could squeeze into them."

That gave me an idea. "Well, I can at least see what they might feel like," I said. I took the thong, stretched out the fabric slightly, and wrapped it around my cock. It felt amazing, and the idea that I was doing this in front of my sister, with her panties, almost sent me over the edge. "Oh yeah," I said, "They're super soft." I then began to slowly - almost imperceptibly - stroke myself with my sister's thong, right in front of her.

"Yeah, that's one of my favorite ones," Ashley said, "They feel great."

"Hey, you know what's kind of weird?" I asked.

"What's that?" Ashley said, looking down at my thong-covered cock and then back up to my eyes.

"I've read online that some guys like to use panties to jerk off, and even cum in them," I said, still maintaining my agonizingly slow stroking. "I've never done it though, always thought it was a bit strange."

"Huh, that is kind of weird," Ashley said, "Well, I'm about to get in the shower, and I need to do laundry later anyway. So, if you want to try it, feel free to use those. You probably need to take care of your morning wood either way, yeah?"

"You're right," I replied, "As fun as it is walking around with a hard cock, I find cumming to be a lot more satisfying. And thanks for the offer, I'd be a fool to turn that down." I picked up the pace a little, now steadily masturbating with my sister's thong as she watched.

Ashley walked over to the shower and turned it on. She felt the water for temperature and said, "No problem. Just be sure to leave them near the sink when you're done so I can be sure they get into the laundry."

"Will do," I panted, stroking a bit faster while ogling my sister's toned, naked body. I could feel more precum leaking from my tip, absorbing into the fabric of her thong. Ashley stepped into the shower, but even the blurred image of her was enough for me to cum. I came hard, letting 6 ropes of hot jizz shoot into Ashley's thong. I pulled the thong away from my still-throbbing cock and saw that there was a lot of cum that hadn't soaked into the fabric. I laid her thong down on the sink counter, washed my hands, and brushed my teeth.

A few minutes later, Ashley was out of the shower and drying off behind me as I finished rinsing out my mouth. She hung her towel back up and stepped up to the sink to start putting on her makeup. She glanced down at her cum-covered thong. "Wow, Parker," she said, "I see you, um, spared no expense, if you will. Is that, er, I feel like that's a lot of cum!"

The mere idea of my sister pondering over her thong coated in my cum caused my cock to begin growing again. "Yeah, it had been a while since I last came," I lied, "Also, I think the new experience of using your thong helped too - it really is incredibly soft. And the idea of using a thong - even my sister's - is pretty kinky. I can see why guys are into it, and I guess I am now, too."

"Well, I'm glad I could help you out," Ashley said, looking down at my cock again, "but it looks like you're going to need to have another go." In that short time, my cock had risen to full hardness once more.