I used to go to my professor for clearing my doubts always and he was always very helpful and I never had any sexual feelings towards him and I guess he also had none towards me till that day. He is a married man in his late 50s. As usual I went to his house to clear my doubts and he helped. I had to use the restroom and asked for his permission and went to the restroom and as I was peeing in my eyes went to the dustbin that was kept in restroom and it had a used condom with semen still present so must have been disposed few minutes back only but his wife was out of town from last week and would be back by next week only as told by him.

So I got a feeling that either my professor is having an affair, but was afraid to ask. So instead of that I planned a thing and intentionally fell down in the restroom in such a way that the used condom is over me. I asked for help but the door was locked so he had to use the key to enter. As soon as he entered, he was shocked to see me, as I had not pulled up my jeans so my thighs and panties were clearly visible and to surprise more his used condom was on my top. He tried to shy away but I insisted him to help me to get up. He tried to lift me and put away the condom in the bin again. But the fluid/semen had pored out of it on my top.

He then held his hands across me from back and lifted me and while doing that he had got to touch my both boobs and once I was up I could feel his hard on right at my ass. He asked me to walk forward and I was doing that while still feeling his hard cock. He also was trying to push his cock more in my ass it felt like. Once we reached near the bed he laid me down slowly and asked if I am okay? To which I replied yeah just a little pain on my right leg. I also asked if I can get an extra top/t-shirt as mine had become dirty. So he went to the drawer and took a sexy deep neck top of her wife( I don't know if that was intentional or not). As his wife's assets were bigger than mine the top was damn loose to me giving a clear view of my boobs and bra and he continuously stared there while I saw his cock had become hard. I don't know what happened to him suddenly and went away. I went looking for him and he was in the other restroom and the door was not locked and I could see he was jerking to me by browsing my photos on social media and rubbing his cock on me and it gave me wild shivers and without any hesitation I slowly went in and hold his cock and started stroking.

He was first shocked to look at me but then as I put his cock right in my mouth he was like please do more to him and then we fucked madly, he even fucked my ass and licked my whole body like a hungry dog. It felt so amazing. After that we often fuck as and when we get time