Something being illegal can be even more cause to discuss it in public. Just because it's illegal doesn't make it wrong.
I doubt people use there real names on here, and I doubt the police would put any time or money into investigating someone on a forum who once took a drug.
Seems this isn't a popular topic though I can't help but try and assist but I'll try and be brief.
Personally I wouldn't recommend sex on any hallucinogens unless it's a sexual partner you know incredibly well , and I certainly wouldn't recommend you take them to enhance your sexual experience.
Can they ... Sure .. Anything that alters or elevates the levels of certain chemicals in the brain or simply stimulates certain areas of the brain can enhance physical and mental sensations.
Though hallucinogens would be at the bottom of my list... Tbh one of the things that's pretty much the top of my list is simply being in a great mood and being with a great partner.
Personally shrooms I find make you too sick too make you even think about sex...acid however heightens sexual arousal and have blown four loads in anight from over the top indulgence.Really good in this respect
I had an ex who used to get an upset belly and major diarrhoea when he took acid.. I didn't really want to get too close to his junk when he was tripping tbh.. hahaha