ive been in the same situation and the right thing to do is get to know him more to get him out of the shy side and see how he really does react to things=]
good luck

Vasha has an excellent point. I forgot about that Vasha! ...man... it's been a long time. You are right! I just forgot. Talking can be stressful for a shy person.

I bow out of this... I think Vasha has the more nurturing and careful, subtle approach.

Yes. I think so.

Shy and timid people have problems "talking it out" as this is very stressful. Sometime you need to "show them" by touching and caressing. Some people are very inhibited so talk just does not work or can scare them away.
Don't make a big deal of a "date" but get together and show him your feelings. If talk come up then be gentile and take his hand He may need encouragement. If it still is not working ask him to kiss you, Make it known what you want.

"if he just took advantage" what does that mean? "Taking advantage" of what? You were drunk, but that isn't "taking advantage" either. "Taking advantage" of an opportunity would be correct. Spending the whole night dancing and caressing you is the crossing of a new boundary. Why step backward? Move forward! Drinking only loosens our inhibitions. If he wasn't obnoxious, then there is no problem. He meant what he was doing. He is shy, so it only makes sense that in his drinking (and yours) that inhibitions are set aside. But, is your openess while drinking actually genuine? Can both of you achieve what you did without drinking? You "played it off" because you are shy, too. I would say, don't go backward.

Are you more than friends? You mean, if neither of you would have been drinking, would this had happened?

Don't over analyze it.

If he causes enthusiasm in your heart (makes you happy), and if you make him happy. Your shyness is getting in the way. Try it without alcohol. Just ask him out. Let him ask you out.

What happens when both of you are drunk is exactly how you feel when you are sober. No one takes advantage of anyone in that situation when those feelings are there, sober or drunk. However, to be fair to yourself and to him, both of you need to connect without being drunk. My suggestion is to sit with him in a quiet, dark, private, calm and peaceful place... in the dark, or almost dark. Sit close. Chat. Laugh. Touch and even giggle if you must. Move forward and see what happens. If those feelings are still there, then great! you won't know unless or until you try it without drinking.

Good Luck!

Ask him out.

You can't know how a person feels until you talk to them.