Getting caught by Sara

Years ago, just after my divorce, I was living in a small 2 bedroom with an all in one kitchen/living area that was close to a university that I taught at. One day I spotted the younger sister of a guy I grew up with at a local pub. She was at about 10 years younger than me and very cute. Over a couple of beers, we caught up on each others lives and families. It turns out she was commuting to the University for an advanced degree and lived over an hour. While she was living with a guy, she wasn't sure the relationship was going anywhere. The next Tuesday, she stopped into my office to say Hi and we chatted for a while. The weather was turning snowy and I asked if she was headed home soon. She said she had one more class that would be out just after dark. I told her if she needed a place to flop for the night that I had an extra bedroom. She thanked me and left. That evening she called and said she really didn't want to impose, but she needed help as her car was stuck in the snow trying to get out of the parking lot. I grabbed to shovel and went to help. Sara was about 52, maybe 115 lbs., nice athletic build, C-cup, dark hair and striking green eyes. I insisted on her staying and not fight the bad weather. That night was uneventful and in the morning I gave her an extra key and she was very thankful but didn't want to impose. I told her she was welcome to use it anytime, especially when the weather was bad. When I am home alone, I am always nude, except of course when I have guests. I love being nude and often will edge and masturbate in the evening. So I was standing in the kitchen that evening naked, edging and hard as a rock when Sara walked in. No knock, no call or anything. There was no hiding what I was doing. I had one hand on my cock and in the other I had a glass of wine with nothing close to cover up. She immediately put her hand to her mouth in a surprised look and was definitely staring at my cock. She burst out laughing and started to say she was sorry. Now she didn't turn her head or shy away, but rather continued to look. I regained my composure and told her to come in and then excused myself to get some clothes. On the way I told her to make herself comfortable and help herself to the wine. I returned after pulling on some pants and a t-shirt and remarked that I didn't expect her. She said that was obvious, apologized profusely, and tried calling me but her cell phone died. She said she didn't have to stay and I told her I was fine if she was ok with what happened. She said roads were icy again. I insisted on her staying and after some discussion she told me she was stumped on an assignment for her class. I offered to help and we ordered pizza for delivery as we worked on her homework. During the evening, after a more and more wine, she again apologized for walking in on me and interrupting me. We laughed and carried on for a bit longer. She then asked if that was something I did often. The wine was obviously doing some of the talking when revealed that I normally am nude and yes, given no better alternative, I do play a lot. She asked what I meant by play to which I explained that I love to edge and sometimes try to go for quite a while. After more wine, we were laughing about all the embarrassing moments in our early days like when her brother had walked in on her using her moms vibrator, or when my Mom walked in on me a more than once, us running naked through the sprinklers naked when we were young, etc. Sara then sort of modestly whispered, well, I am sorry you didn't have a chance to complete your mission. I really don't want to impose on you and I feel like I have. I told her that it was wonderful to have someone around and it was no big deal. After more chit chat, she rounded back to the discussion and requested that I tell her that if she wasn't here would I be naked? I responded quickly, yes. She then said, so would you be masturbating then? I told her probably. She then told me that if I didn't do what I normally would do, then she was imposing and she doesn't want to impose. I was taken back by the comment. I stumbled on the idea and excused myself to go the bathroom. Did she really mean to get naked and jack-off now or was it the beer talking? Lots of questions and fantasies running through my head. I really didn't know what to think. When I returned she asked if she could use my robe and shower. I told her absolutely. I flipped on the TV and relaxed. When she was done, I showered also and pulled on some PJ shorts and t-short. I didn't know what to expect and being the idiot I am, I just let it pass. The next morning, she was out the door before I was up. I sleep naked and I got up, made coffee and checked my email. As I was headed over to the coffee pot to get a cup, I started to jack-off and really got into. I stopped long enough to get a cup and was standing in the same spot as the prior night and started to jack off thinking about last night. I was really close when the door opened and Sara walked in again. I stopped momentarily with likely a deer in headlights look. I was still holding my cock when Sara said, Please, please don't stop. You need to cum. I will just get my bag and go. So I kept stroking while she walked into her bedroom, retrieved her bag. I was slowly stroking as I took a sip of coffee when she returned. I offered a cup which she happily accepted. Naked, I slow stroked with one hand and got her a cup of coffee. I then said, Are you sure you are ok with this? She said, Oh yeah! I am fine. I wish my boyfriend would do it in front of me. I just feel like it is just so natural. I don't mind at all. She sipped her coffee watching and I continued jacking with one hand and came in the other. She smiled when I looked up after I filled my hand and she asked if I felt better. I smiled and said, yes, thanks you. After a few comments she left. That broke the ice for us. Our relationship continued for another year or so until she graduated and moved away for a new job.