It's not just you, I love cumming in a ladies ass and it's my wife's favorite part, she love that feeling
I ask my wife to describe what it felt like when I cum in her ass and she said it's like one large hot burst followed by 4 or 5 smaller hot burst, I had to fuck her ass again after that
I'm definitely more into then my husband, but he is coming around to enjoying it, more so because of the ummmm show he gets from me in return lol
It's heaven if she cums at the same time I'm popping off back there. I can really feel her contractions around my cock because that muscle is so strong. If you've ever watched a closeup of a woman having an orgasm, it's enticing to see her small hole squeezing up so tight as she goes through her climax. That's what feels so great. Of course, releasing inside is wonderful as well.