Girl 1 - Really nice to me, does everything for me, but not the most attractive.

Girl 2 - Kind of crazy, fun to hang out with, a bit slutty, I'm extremely attracted to her, we share common interests.

Girl 3 - Bitchy attitude, but can be very fun to chill with, has huge tits and is thick.

What do? Should I try to fuck Girl 3, and then afterwards try to get into a relationship with Girl 2? But Girl 1 will probably be very upset by this.