Yeah I've done acid a bunch of times, and pretty sure a few of them it probably wasn't even acid but some legal synthetic acid type of shit. Yeah I've never hallucinated things that aren't there but my perception of depth would change, and a lot of waves, and shapes on things etc. If you utilise it properly its a great, deep experience. But I've also done it with mates where all they wanted to do was sit in a room, smoke weed and just watch tv and shit. It's alright I guess that way but I much prefer going for walks on it or just sitting in a cafe watching the street go by or something fucking cool rather than watching netflix and playing xbox. (Not saying xbox can't be fun on acid, but nature is a whole other level on acid!)
I feel I'd be too scared to have sex on acid, or even if I'd be able to get it up! So much shit is popping into my head when I'm on it, not even sure how I'd focus on sex. And yeah can get very weird at times, hasn't happened to me but definitely to my friend who started talking about his insecurities and how he "knew" that we all thought he was a waste of life, all he did was smoke weed, was skinny, how we believed he couldn't get girls etc (we did not think this but this is how he felt on acid). This all started aswell when he tried to trip my other friend out and he somehow ended tripping himself out and stared pranging out. I am fully against that type of shit tryna mess with other peoples mind while their on a psychedelic. Luckily I didn't do acid that night with my friends as that night I found out my grandfather passed away and had to get a 2 hr taxi from my unviersity city (Nottingham) to London at about 2 am!
Also last point, if you're wife drives, get her to take you on a drive, and get to her drive somwhere where she can go at a little speed for a bit.. so good man, especially at night and seeing all the lights.