Just boxers

I quickly snatched up my discarded boxers from earlier and pulled them on. I nearly fell I tried to put them on so fast. Once they were on I moved across my room and out the door. I stood in the hall practically naked as I realised what I was about to do.

I started walking. In a few steps I was outside Becky's room. I hesitated for a moment. My heart was really pounding now. I knocked on her door and only waited a second before pushing open the door.

The frost thing I noticed was that her room was dark. Her blinds were shut even though it was the middle of the day. Her room was still a mess. Her floor was carpeted with the same discarded clothing from earlier. In fact there was more than earlier. I noticed the mini skirt she was wearing earlier along with her shirt in a pile at the bottom of her bed. There was a pair of socks next to them as well. The trail of clothing ended just below her where a matching set of bra and panties lay on the floor.

Becky was sat on her bed. She was under the covers of her bed, the sheets covering most of her body. I guessed from the pile of clothing that my sister was completely naked underneath. Her right leg was bare and exposed in to just above the knee giving me an glimpse at her amazing legs. My eyes were quickly drawn higher though. As I entered the room my sister had quickly pulled up her covers but she really hadn't managed to cover much. Her shoulders were bare and her tits were almost completely exposed. She had pulled the sheets high enough to cover her nipples but I could still just see the top of them. The covers were tented at her waist where here legs were pulled up and spread slightly, however, the sheets quickly flattened once I entered her room.

My sister was clearly shocked as I pushed open her door. Her phone was in mid air. She had dropped it in surprise as I'd entered. Looking at her face I could tell she was very flushed and that her left hand was under the covers down by her waist.

"W-What are you doing?!" She yelled as her phone hit the floor "you can't just barge in here like that!"

"Sorry. I did knock"

"We'll wait till I say you can come in next time" she hadn't pulled her covers up any higher leaving her breasts almost hanging out.

"What are you doing anyway?" I asked innocently trying my best not to keep eye contact.

"I…umm…I was just relaxing. Maybe get some sleep" she said

"Do you normally relax naked?" I asked

"Hmm, sometimes" she smiled "at least I shut the door when I do"

"I wonder what else you do behind closed doors" I replied

"I bet you do" she said "Maybe the same things you do behind open ones. What do you need anyway I'm…busy"

"I just wanted to make sure everythings fine between us after earlier" I said

"Don't worry about it" she said "it's natural. Everyone does it. You can walk round the house naked jerking off for all I care"

"Really?" I asked

"Sure, I've seen everything thing now already" she replied "just don't let mom catch you"

I took a deep breath.

"Well if you're okay with it" I said. I reached down and grabbed the elastic of my boxers before pulling them down. My sisters jaw practically hit the floor as I stepped out of my boxers. I couldn't believe what I was doing. I stood totally naked in front of my sister for the second time today.

"Wow" she said at last.

"You sure you're okay with this?" I asked

"Yeah, fine. Someone's certainly feeling bold" she said taking in the sight of my nakedness.

"I guess. Like you said you've seen it all before anyway. No point hiding it"

"I guess" she said. A moment later I noticed her eyes fix on my chest "what's on your chest? Is…is that…? Did you cum all over yourself?"

"I err…gotta go" I said quickly, making sure she got another flash of my ass as I left her room.

"You did! You dirty bastard!" She called after me.