I think I'm bisexual, need to chat with someone.

So, my whole life I've been attracted to girls and boobs. Never have I been attracted or can I see myself dating a guy. But whenever I'm horny, I'm super into cock, fantasize about sucking one, kissing one and being dominated by a gay man. I'm a Virgin, never kissed a girl. Whenever I cum I'm immediately disinterested in men or cock. I keep on doubting I'm bisexual. I would love to talk to some people about this. Thanks!