I live in Prague, Czech Republic — Europe. Before asking any question, I should tell you that I really appreciate your service. As for my question, I would like to ask you about the most common reasons for condom failure as a contraceptive method. I suppose that the most frequent one is condom breakage. But what are the others? I am especially concerned about pregnancy risk implied by the accidental transfer of sperm in pre-cum to condom by fingers while putting it on.

I would wish to know about the health implications of men using vibrators. I seem to have developed a fungus/mold. I would like to know more before a health check, approaching in complete ignorance. Thank you.

If you were a woman, who wanted to be a man, could you get a penis? And once you got your penis, could you masturbate, ejaculate, and experience other male sexual behaviors?

And vice versa. If you were a man, who wanted to be a woman, could you then get your penis removed, and then masturbate?

I've read some other questions on here about men hitting the cervix with their penis and that the penis doesn't go through the cervix. I'm larger than average and my girlfriend is telling me that I'm actually going through the cervix. When we first started having sex it was very painful for her because she thought that I was penetrating the cervix. Now she's past it being painful but still thinks that I'm actually penetrating the cervix. My question is, is that possible?