I’m married but had oral sex with a girl

Okay so I was just exited from seeing porn and wanted to try being a with a girl so we met up I knew her from a long time ago and he performed oral on me I didn’t do it to her I’ve never been with a girl before I’m not really into dating girls or kissing her I love my husband and we have great sex but I’m scared he might find out I don’t know what he would say I was having a fantasy of a girl eating me out I got exited seeing it in porn. Guys I don’t like this girl to date it was a one time thing. I love my husband we dated for 4 years and married for two years almost. Me and my husband have a family together I don’t want to leave him.