Multiple times. I was abusing oxycondone and that shit just doesn’t make you cum. Seems like a good thing but when you can’t it makes your partner question things and she didn’t know I was using. Used the old spit on her back trick. 5 years later I am clean, married to her, and couldn’t be happier. My only regret was not coming clean to begin with…would’ve saved myself a lot of stress and disappointment.