Is it normal to want to be sexually dominated by same sex friend?

I'm a mostly straight guy that has always dated girls. Recently, though, I stayed over at my friend's house while his girlfriend was there. They were fooling around and somehow they coaxed me into joining them. I had never had a threesome or been with a guy before. Apprehensive at first, I became a little more comfortable as things progressed. We all got undressed and when I saw my friend naked and his huge penis It became a big turn on. His penis was beautiful. It was long, really thick and obvious to all of us,bigger than mine. My friend is good looking and is an alpha type but it surprised me to be sexually attracted to him. I was really confused; a switched was flicked in my brain. It had never occurred to me he was so much bigger than me. It didn't upset me but was in fact a turn on that mine was smaller. It made me feel really feminine and submissive.
I sucked his penis that night and now just want him inside me and to dominant me. Im really jealous of his girlfriend and after the act, her and I talked about my friend like two girls. I think she knows how I feel about him. I'm starting to dream about being his "girlfriend." I look at myself and him so differently now. I'm still really attracted to girls but it feels like he put be under a "spell." Is it normal to want to be sexually dominated by a friend?