I sucked my bestfriend’s dick last night and I have a girlfriend

Ok so to start I like pleasing people, it’s what really gets me off but I never thought I would have actually sucked a dick. We started joking about it last night while I was sleeping over and we were both drunk and I told him “if I get drunk enough I’d suck your dick”. When I said that I didn’t know if I was truly joking or not but then he asked if I actually wanted to and I said “idk maybe” so one thing led to another and he finished in my mouth. We both have girlfriends and I don’t know how to feel about what happened. Part of me really liked it but I don’t know how he felt, he said he liked it afterwards and he was saying good boy during it and seemed to be really into it but I have a feeling that if the opportunity presents itself again I would do it again. But it’s only him, I’m not attracted to any other male and I still find my girlfriend extremely hot so does what happened make me gay?