What A Day isThis?

In general we were responsible for the incoming post and answering phones of the clients, nothing complicated, no meetings with customers. Tom, two years younger than me, constantly played, installed or was trying with the computer. Since one of the first days he kept repeating that when nobody will be around he would show me collection of the porn pictures somebody had sent him, because the computer had the newest model of very graphically detailed screen. I was interested, but not sure how to react to this offer, mainly because I played form to him: I was already at the university and he still only in high school. I already had some sexual experiences with my then girlfriend and didn't want to admit to him, who was still a virgin, that because she lived in a distanced city I was regularly masturbating during the whole summer. Plus as being older I was asked by his father to be responsible for we would behave.

The building with the office was connected with another house, recently inhabited by Tom's newly wed sister and her husband. She was few years older than me, maybe 22 or 23, and really very pretty. Her husband was already working somewhere away, but she was staying at home during those days. She was doing her stuff and never showed up in the offices, only sometimes in the afternoons we met her in the courtyard.

One day everybody went away for business purpose, only us two were left to take care of the firm. Around 9 am one of the partners called and asked for something we didn't know - we needed to go to the storage rooms to find out. Tom, who was sitting again by the computer, said he was not going anywhere, so I had to do that on my own. We argued little bit, but then it came through my mind he might be finally wanting to watch some porn, so I agreed. 

The way to the garage went through the courtyard with two windows of my friend's sister flat. They were still blinded with a very heavy curtain which could be pulled up only by standing on the chair put near the window from inside. On my way back I saw one curtain was just being lifted so I stopped by the second window to say good morning to this young lady. To my surprise she did it while being completely naked. She stood frozen in a shock as well as I did - I could see the small area of her pubes and lovely little tits, her nice face and curly hair, all just in front of me like in striptease. The entire moment lasted just few seconds, not more, but it seemed like minutes. Finally I just said hello, she covered herself with hands and disappeared. 

I still remember what came trough my mind: she was having sex in the morning, her husband went to work then, while she stayed in bed still fully naked, she was playing little more with her lovely pussy, and then, after her second orgasm, she got up and wanted to let the light inside. The place was never rush so she didn't expect anybody. I desperately wanted to go to restroom to fantasize about it and jerk off.

The restroom was at the end of the hall, so I needed quickly to walk around our office. I was wearing only very loose shorts - my hardon was not entirely visible but who would look properly would see. I would like to avoid anybody to find out. But Tom was sitting there with the right hand on his lap. He didn’t seem to do anything, but was looking at some nude picture on the screen. So in contrary to my plan I stopped to look at it too.

I told him what I saw right now and how excited it was, so I might be interested in seeing the pictures he had. He said it was quite disgusting to him to talk about his nude sister and watch porn, but he clicked for another picture of nude girls. Though it was black and white, the slides were very sexy. I was standing behind him and was pressing my hard dick onto the back of his seat, and it looked he also started to have a bulge visible in his pants. I didn’t want to do anything while standing, and moreover while standing that close to somebody, so I moved few steps back to sit on the sofa that was under the window. It was very comfortable I could still well see the pictures and at the same time concentrate on my own thoughts. I pulled my dick from the bottom of my short pants the way he couldn’t exactly spot, but I did not hide that I started to stroke myself. He looked at me and started to touch himself through his pants. In a while he pulled his pants down to his knees, but even though I also could only see his moves, not his penis, so our joint masturbation was fairly decent in some way. I only took off my t-shirt, because it was hot and I didn’t want to sweat.

As I mentioned, his sister had never before appeared in the offices wing. We even did not know she might have the key from the main entrance - you had to ring the bell first and we could open it with remote control. But this time, perhaps because she wanted to apologize (absolutely unnecessary) or because she wanted to ask me not to say anybody (too late) or because she was curious for my reaction (actually on run) - and she obviously had the keys - went to see us in the office. And as the door was on the left side from us and we didn’t even close it, there she was. And she saw us both very explicitly with dicks in our right hands jerking off. He pulled his pants up quickly and quite swiftly covered himself. But as I had my pants on and I couldn’t fit my hard dick in it. Very chaotically I covered myself with my t-shirt and not only that. While them both were watching my poor dealing with the situation I squirted into it.

At that moment I was frightened, I was trying to hide my cumshot - it was not that 100% obvious, but also it’s never possible to deny it completely. Of course she knew, she waited till I stopped moving. Her reaction now seems funny - she only said, “OMG, What a day is this?” and then quickly left.

We sat silent for a minute. Then Tom asked me: “Did you cum in front of my sister?” I said, "F***ing yes," and lifted my one and only t-shirt I had there that day. It was now fully sticked with never before seen amount of semen. I couldn’t imagine how would I get home, how we would go to have lunch and so on. 

Strange thing happened then, and that’s the end of this story. When Tom went out to pick up our lunch his sister came to the office again. She whispered sorry, gave me some other shirt and left. I was so embarrassed I didn’t notice she grabbed my dirty t-shirt with her. Next day morning it was perfectly washed, dried and ironed on the sofa waiting for me.