Which was wearing two condoms and
having vaginal
sex for 2 minutes. This person then checked
the condom for leakage by filling it with water. Ah, I remember those days, I actually forgot about that technique, of course I actually did it for more of a fear of pregnancy reasons --didn't want my gf to get pregnant.
I will advise:
If you have to do this after sex maybe it is time to question your current situation.