Sexual orientation

I have no clue what my sexual orientation is. It's a little hard to define. I'm ok with dating people of any gender identity. I have had sex with men and women. I have to be emotionally attached to a person to have sex with them. The kicker is, despite being in several relationships, in my 27 years of life, I have only been sexually physically attracted to two people. It was like the corny love at first sight and though I did not immediately act on either, both of those people ended up being people I dated. One died and the other is still currently the love of my life. Anyone experience these kinds of things?