How reddit helped me fuck my friend [MF]

Hi all. This is my first post so please be gentle. I’ve never been the one to share my stories but there’s always a first.

Just a bit on me. I’m now 31, happily married with a child, 6’7″ tall, average build.
A couple of months ago I was visiting one of my friends, let’s call her Abby. We’ve been friends from uni, so that’s about 8-9 years now. I’ve always found her really attractive, as I’m into petites. She’s about 5 foot tall, slim, with a nice bubbly ass and small perky tits.