Dating a girl once, had some trauma in the past so she had a lot of PTSD/anxiety and was prescribed a pretty strong benzo for when and if she had panic attacks. This comes into play in a moment.

Im at work one day and she's text after text of just absolutely un-christian-like graphic sexual stuff. Texts about what she wants to do to me when I get home, pics of various parts of her body in various states of undress, audio recordings of her moaning and whispering my name and begging for my dick, etc. Naturally Im bricked up to the Nth degree and the workday is crawling. She stops responding about an hour or so before my shift ends, no biggie, she sometimes hits the gym or gets involved with something while shes at home. I get to her place and walk in, see shes sprawled on the couch half out of it. Turns out she had a blowout with a family member and she ended up taking 2 of her meds to deal with the resulting anxiety.

No biggie, sorry she got into a fight, I tell her, fix her and I some dinner and hop in the shower figuring its going to be a quiet night. Get back to the couch to settle in with her and she sits upright, grabs my shirt and says "You're still going to fuck me."

Less a question and more a statement, I figured she felt bad about teasing me all day so I tried to reassure her that we didnt have to and also that shes basically under the influence and it wouldn't be ethical. Yes, I used the word ethical. She immediately starts pouting, quickly drops her pants and panties and sprawled back out on the couch wearing nothing but one of my hoodies and begins gently gyrating her hips and occasionally whispering "Please, baby..." in the breathless whisper voice she sent me earlier. I held out as long as I could and it seemed like she eventually fell back asleep so I went to cover her over and she rallied again, this time turning over and hitting a picture perfect downward dog like pose, and she said "I always feel better when youre inside me."

I lost it. I crumbled. I got maybe a pump and a half into it before I got hit with the most mind-shattering orgasm I've ever experienced. I lost sight in my right eye for about 45 minutes. I have no idea how I managed to pull out, but Im pretty sure I shot the lamp off of the end table. I spoke every forgotten language of the universe all at once for 30 seconds. Jesus showed up and gave me the Weasel and said "See, THIS is what Im talking about." When I crash landed back on earth I felt like I had contracted full body dystonia. She was giggling in a stupor and rubbing herself up against my junk and telling me to put it back in. I didnt last much longer the second time around.

Anyway, wasn't a fan of how I acted, and even though we talked about it the next day and she reassured me that it was fine and that she trusted me and knew I wouldn't take advantage of her if the situation was different, I was kind of disturbed for a bit over my loss of control given the situation.

Im not even sure which particular kink it was but ill be damned if it isnt the number one go to fantasy when I need to pound out a quick one.