I caught my boyfriend (M21) fucking his aunt (F48)

I’m still in disbelief of what happened even though it happened a while ago. I was dating my bestfriend who lived in the same apartment complex as me. This made it very convenient because we both loved having sex. His aunt lived right next door to him. She lived with her 2 daughters while her husband was working in a different country. She was out of town for a few days and had left her house keys with my bf for emergencies. So naturally we made a copy of the key and used it as a fuck house for the next few weeks.

We would usually just chill at his aunts place during this time. I had the other copy so I would just head over and find him there or would shoot a text and he would come within a minute. This fine day like any other day I walked into his aunts house using my copy of the key. I don’t see him in the living room so I head on to the bathroom because I really wanted to pee. As I’m making my way I hear some commotion from the bedroom. I take a peek and lo and behold. There it is. My boyfriend fucking his mom’s older sister.

I still can’t get the image out of my head. My boyfriend was fucking this woman who was almost 50, who he saw everyday growing up, who also happens to be his mom’s sister. She was lying on her back while he pounded her in missionary. I stood there for a couple of minutes completely aroused not knowing what to do.

More in part 2 or ask away in the comments:)