i make only inter-course.Hahaha, how about an English course?
Draqy, its widely known that people who are too sensitive with sexual orientation are the same people who are far from the straight pole, you just suppress too much your gayness,that is the real reason you hated your first time,not cause she was fat but rather cause unconsciously you were seeking a penis.
Its not a bad thing,but it will give peace to your soul if you admit what you are.You should find help,am not in your situation so i don't know how bad your case is, consult a doctor or a real life friend.