Hi everyone, typing this on mobile so apologies for any errors from formatting! This is my first sex story, I apologize if this is bad at all. If you want to skip to the sex scene down below, please scroll to “Sex Scene Ensues”
A bit of background but my (24M) fiancé (24F) gets off on me hooking up/messaging other girls. A bit of a cuckquean, I don’t know if we consider the relationship open, but rather the fact that she just gets off on this type of thing, she doesn’t hookup with other guys/girls ( I tell her she’s more than welcome to do so and she declines).
My fiancé (nicknaming her F) and I attended a wedding over the weekend, I’m friends with the family of the bride and the bride’s sister (28F, I’m going to call her M) was there. M is my ex, but we are good friends still with a bit of flirting in between. M was in a beautiful dress with only one shoulder strap and managed to be sat at the same table as her. I hadn’t seen her since she had her kid a few years ago, but it went straight to her hips and tits. She was always a bigger girl (hence my username), her tits were a DD before but now looking like a F/G cup. M’s ass was easily one of the best bubble butts I have seen and she has some of the most beautiful icy blue eyes you can see.