About 2months ago I introduced my friend to my flat mate, they seemed to hit it off and be good friends. Over the last few weeks she has be over alot! Recently she would stick around after I went to sleep to "chat" with him. I thought it weird, but shes so dedicated and in love with her hisband, and the flatmate is with his fiance, I thought they were behaving. Well was I wrong... She confessed a couple of weeks ago about their affair, and how much fun they are having! Now they are openly having sex in the house, Ive even walked in on them in the lounge. His room is above mine, and now I get to hear them have alot of sex, moaning, bed knocking the wall etc. Problem is, I enjoy it! Ive even started masterbating to it. The house is old and shakes alot, so when they go at it hard, it literally makes my room vibrate 😆