So you've been together for three years, tried everything under the sun and then he thinks it would be fun to get me really drunk and have his way with you.
I guess he missed out on college life
If you really wan't to go with the drinking idea you can push it even further and dress up. How about you be the wench and your boy dress up as a pirate!
But I've never been a fan of alcohol for sex, I find it dulls the experience. Drugs on the other hand
Shrooms or E are allot of fun for that kind of thing, easy to get, cheap and no poor side effect.