How to come out as bisexual?

hi, well my issue is i think im bisexual. im a 15 year old male and i would like to come out to family. my problem is , they all think im straight! since im bi im able to talk about hot girls and they have no signs that im bisexual, so i think it would be rather hard. It also bothers me that i feel like if i come out my father will just be like " Well just ignore feelings for guys and go with girls " but i dont want to do that! My question is just how should i come out, especially to my conservative family, iknow my parents wont hurt me, verbally or physically, but id just like some ideas, and/or stories, thanks