So this happened today at college, what should I do? (Warning: contains gay references)?

I've known since I was 16 that I was gay, and I've accepted it and everything, as have my friends and family.

Anyway, so at college today, I finished my last class (English), and prepared to go home. My teacher (for obvious purposes we'll call him Will) told me to stay behind. So I did. As the last person left the class, he took out a piece of paper and proceeded to go through some info with me about an upcoming test he was gonna make us do (in preparation for exams [it's my last year of college, so it's pretty much tests all the way through the year]). I thought it was a little odd for him to only have me there, instead of giving this advice to all the students, but I just assumed he thought I'd be someone who would fail it.

Anyway, as he was telling me about the various questions, he kept brushing my hand (which was on the desk as I looked at the paper). I didn't really pay attention to it, assuming he did it accidentally. It wasn't until I noticed that he kept doing it a little too frequently that I began to get a little confused.

So this kept going on for about 10 minutes until he suddenly stopped and looked at me. I looked up at him and all of a sudden he just said "You've got really nice eyes."

Now I'm all for flattery and stuff, but I was kind of lost for words, I thought I was there to learn about an upcoming test, not to be hit on by my English teacher, especially the English teacher whom I had assumed was straight! I could feel myself getting very hot and red, so I just said "thanks" and passed it off. It's not that the guy isn't attractive, he is very much so, and I've had a crush on him since I started doing English, but I always left it in my fantasies, I kept telling myself that nothing would ever come of it because it's unethical and he could get into trouble. It's not that I'm not legal (the legal here in the UK, including gay people, is 16) (I'm 18), it's just an awkward position to be put in.

So after an awkward silence, I asked if that's all he needed from me. He said yes and I went to get my stuff (which was at the end of the room). I get up and walk over, bend down to pick up my bag when I feel his hand rub my backside. I instantly shot up and looked at him. It was kind of intimidating if I'm honest, he's quite muscular and broad-shouldered, and he towered over me (he's 6'1", I'm 5'9").

He then pushed me to the wall and kissed me. Quite an aggressive kiss too, he left marks where his stubble had rubbed against my face. I will admit I got into it and kissed him back. He then proceeded to feel my crotch, and put my hand on his. I never undid his trousers, nor did he mine. It was a very hot experience, I'll admit, but I knew deep down that it was wrong.

After we parted, he told me (with a big smile on his face) I'd best get home. I walked out of the room dumb-founded and went straight home.

The question I have is, what do I do? My mind is still reeling from this and I'm extremely confused.I think he's a great guy, he gets on well with everyone and he's always very nice, and he's a great teacher too. But this instance was very out-of-the-blue, I'd never even gotten the slightest hint he was even into me, like I said, I thought he was straight. I don't feel I should report him for this, because he could lose his job, but what he did is very much frowned upon and considered unethical.

I know that teacher/student relationships are frowned upon, and many people tell others that they can't work out due to the problems that arise, especially those that include the law, but I can't help but feel elated that he did this. I know you probably think I'm crazy, but I can't really explain it.

I know I've written a lot, and I thank you if you took the time to read it fully, but I really need advice. I have no idea where to take this, and I have English again tomorrow too. What should I do then? Act like nothing happened? Go with the flow and see how he acts towards me?

But the main problem is what should I do about this situation I'm in? I know that I'm as much to blame as he is for allowing the incident to happen. Should I stop him next time he tries to do it? Do I tell him not on college grounds?

I don't know what kind of trouble he can get in with me being 18 (he's 27), but I know he can lose his job for definite for this.

So any help you can provide will be much appreciated, and thank you so much for taking the time to look at this!