Several years ago, for me anyway, the anti-depressant "Celexa" had the side effect of "won't be a problem getting there, but will probably be a problem crossing the finish line" if you know what I mean. Brutal stuff.
Nowadays, I subscribe to the "Lay away plan" when it comes to sex...... I just lay there and she has her way with me.

I hated breaking the news to her, but sooner or later I needed to, that brushing with Sensodyne toothpaste prior to bedtime probably wasn't a good move on her part.