I can't imagine why guys want to fuck while being intoxicated. A little alcohol helps you to talk to a lady in clubs, sure, but thinking that being intoxicated will enhance the sex is absolute bullshit. Learned it the hard way before I discovered this hobby. Back then, like most horny young dudes, I went clubbing every weekend just hoping to get laid. The only time I successfully picked up a girl, we both been drinking, I was walking her back to her place thinking yes this is finally happening!! Well, guess what, I got whiskydick, alcohol just made me wanna relax once I was on her bed, it not only took a while for my junior to get up, I blew after a few seconds of blowjob and then she went to sleep and I was laying there dead inside.
Ever since then I never have sex not being sober again. And I discovered that I performed the absolute best when I smash sober. Having sex, in my opinion, requires a clear head, because a clear head helps you to control your rhythm while you thrust, and it heightens the experience because your senses are awake, you can feel her body and sense her body scents so much better compared to when you are intoxicated, where most of your senses are either numb or asleep and you won't remember as much once you become sober afterwards.
If you require alcohol to have sex because you are nervous, that's understandable but get over it. I am paying for a good attitude that makes me relaxed already, I walk into seeing a SP already knowing I won't be rejected. I don't have the anxiety when I visit a provider anymore, because I already know they will be professional and nice to talk to, unlike girls in clubs that give me attitude 90% of the time before I even open my mouth. Note that I am only talking about alcohol because I don't have sexual experience that involves weed, but it seems like it does enhance the experience according to what some members mentioned here.