i have never used them but i learned in high school that if i jacked off before i could last as long as i wanted. So before i went on a date or had sex i would secretly masturbate before. I remember doing it in a girlfriends parents bathroom before we went out. It also a thrill masturbating in odd or risky places for me

I use it often. Use the liquid. Was off when done though

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Here's an article on it. I wouldn't put numbing chemicals on my dick thought. I'm sure there are other ways to deal with PE

benzocaine is a numbing solution

What the fuck is that chemical? Sounds dangerous