Is it normal to be in love with 2 brothers?

I'm in love with this guy. But I'm also really sexually attracted to his brother. Let's call them guy 1 and guy 2. So, I'll be talking all lovey to guy 1 but then guy 2 will call me and we'll have phone sex. Neither of them know that I talk to the other. While i'm on the phone with one I'll be texting the other. They're stepbrothers but still. I'm more sexually attracted to guy 2, and we're 'married'. Guy 1 is just my ex boyfriend. I still have feelings for him, but they're not sexual at all and intimate. Is this weird?