Is it normal to want sex with a boy while i'm not a gay?

I'm a boy, with strong desperation on sex. I realized I'm not gay. But I wanted to have sex with a boy. I met a little cute fat boy on net and had sex with him once. At that time, I fucked and suck him, but also let him to do the same on me. We both enjoy fuck and being fucked. But we didnt love each other. Just did once with him. But still want next. I enjoy having sex with girls as well. IIN?