Im 19, male, I went through puberity late... Im not sure if I like women or men.. I look at women and men and in my head I say to myself he/she is hot... yesterday I went to a sex show hoping this would tell me if I'm gay.. I got a lap dance with a chick in a public room with other guys getting it done to them by other chicks, I did not get a hard on.. this is the first time I've seen a chick fully naked and dancing all over me.
Later that night I went out to a night club with friends and I was making out with this chick but I didn't get a hard on either and then we were dirty dancing and I still didn't get a hard on, I backed out on taking her home because I don't want to find out if I'm gay when are both ready to have sex and I don't get a hard on.. I look at male and female porn but I generally feel more attracted to female porn.. also at the sex show a big group(300+) it was more of were watching the chicks do there strip show and they licking each other out I got a hard on...
Some 1 please help me!

I think that your just not ready to be intimate with another person yet, you said so yourself that you are a late bloomer, you are still in the stage of exploring yourself and other people, you'll probably figure it out soon, remember, the only person that can determine if your gay or not is yourself.

Were do I go on from here? How can I be more intimate? I really want to find out my sexuality

Well, I don't think that you can ascertain sexuality in one night, even considering what you were doing.
And, you are really young.

Do you REALLY NEED to know right now? You may never figure it out, what may wear you out is trying to affix a label to yourself. You may never find one that sticks forever.

Just my thoughts :)