It all started with my ex gf, I gave her sometimes little slaps on her ass while joking around but one day I slaped her ass pretty hard because I just had the urge to do it and she moaned so loudly and so lustful. She was on all fours on the bad at that moment and she looked back to me with embarrassment but also with such an horny look, I pulled down her pants with underwear and started to spank her harder and harder and she goes louder and louder and she was dripping wet. She was now in doggy position with her legs spread very wide and her ass sticking out as much as she can. When her ass was bright red I was so hard and horny I just needed to fuck her hard and I did that, it was great she was screaming so loud and begged me for more spankings while I fuck her balls deep. When we were done she just said she didn’t even know how many times she came. She was shaking like half an hour later and her ass burned the whole week. Since that day her ass was nearly everyday red and I nerver had that good sex again