When I have intercourse with a woman, I use a condom. I don't want children and I don't want to spread STDs. If there is no condom available, there are numerous ways to still have a pleasant experience. You'll never know what kind of stuff piled up in your neither parts since the last shower, unless you shower right before, but still. BUT most of all, I found that a condom makes me last longer and maintain and strengthen my erection, so I don't get that argument. It's been a while now since I last had sex, but I still keep some condoms on my bed side table, just in case, regularly checking their expiration date.