Does someone have to be attracted to you to makeout,cuddle, and have sex with you?

It helps.

if you're a chick, then yeah. if you're a guy, no. all you need to do is pay her.

you cant have sex if you aren't married

Not necessarily, I've had my share of ugly girls, and pretty girls have had their share of me.

I mean it helps if they are....

Usually, with normal people there's genuine attraction that leads to those forms of affection.