Dating a guy with Asperger's

I liked this guy on and off since my freshmen year in high school. I am pretty sure he liked me in freshman year as well and know for a fact he liked me a lot junior years since he asked me to a movie, looked deeply in my eyes a lot, and tried to hold me hand once in the hallway. I freaked out and rejected his advances (in a kind way). It turns out I have Borderline which explains some of it.

We are both 19 and haven't seen each other since we were 16. We have had sporadic phone calls/texts/Facebook messages which are always initiated by me. I honestly don't mind this since he always sounds glad to hear from me. It's not small talk, but we aren't sharing deep secrets either.

He's in town for the holidays and I asked him out to a movie. We will probably eat after. He accepted and seemed happy about it via text. I know people with Asperger's may not appreciate touching, but I would really like to hold his hand and hug, maybe kiss if the mood is right, as I have wanted to do for years. I just don't want to make him uncomfortable.

I would appreciate Some input as to how I should approach this situation. The last thing I want to do is cross a line, but I want to make my message clear.

As someone who doesn't respond very well to touch most of the time (although I do not have Asperger's nor Autism): There is no harm in asking, right? It might feel silly to ask, but it shows respect for the other person's body and boundaries. I've had guys ask me before if they could kiss me - I really appreciate it and I think I've always said yes or just kissed them.

I agree with panda, asking him would be highly recommended. I have high functioning autism and asking makes quite the difference. You should also let him know you like him before asking if you can hold his hand and such. Social situations can be quite confusing or the point might be missed so having someone be upfront helps a lot.