Never Imagined Myself Here

I’ve been with the same woman since high school. I married her 7 years after. We divorced two years ago. Together for 20+ years. I’m not going to get into the why it happened. But it was something I didn’t want. We have a kid so we are still in each other’s lives. I started seeing someone new about a year ago. My Ex always seemed to be a little territorial around her. She would make things awkward by making comments implying she knows me better than my new GF. We shrugged it off as jealousy. But it definitely was becoming a cause of tension in my new relationship. I got a text one night when I was up late watching tv. It was my ex asking if I could help her, she needed to get home from work, her car battery died, and I was the only person whose responded to her. Like I said I’ve been with her forever and she’s the mother of my kid, so I left to go get her. I didn’t wakeup my GF to tell her. When I picked her up, she thanked me so much, and I brought her home. Our old home. She invited me in, and I followed. She excused herself and went in the bathroom, I heard the shower going. I knew what was going to happen. I didn’t expect her be wearing the last piece of lingerie I bought her from over a few years ago. She told me to “Come on” and she opened the door to go upstairs. I followed her up to our old bedroom. I felt weak, I knew exactly what she was doing. She didn’t like my Gf, so she was going to get me to cheat on her. My ex brought out all our classics. She licked my ear, and played with nipples how I like. She let me fist her pussy, she sucked my cock and fingered my ass, she made me suck her toes and worship her feet, and lick her asshole like she likes. Then she told me to put my cock inside her, and that she still owned my dick. I did as I was told, and fucked her like I always had. Her pussy felt like home. I fucked till she came a few times, then she started telling me to give her, my cum. “Cum inside me! It’s mine! Give it to me!” Then she just started to whisperer “gimme my cum” over and over. I exploded inside her, pushing in so deeply. I rolled off her, onto my back breathing with exhaustion. After a little moment of quiet, she crawled down to my penis and put it into her mouth. She lightly sucked on it and kissed it. She told me how good we tasted, my cook was getting a little hard again. I moaned and she kept sucking on me. I have a hard time climaxing back to back, but she just kept slowly sucking and licking. It took a good half hour but I finally came into her mouth (something she hasn’t done in forever). She let out a loud long “mmmmmmm” sound while I was filling her mouth. She swallowed, and she said I better get back or my GF will find out. I left quickly. I broke up shortly after. I felt too guilty about cheating, just like she knew I would. She got what she really wanted. She always does.