I have a question that I don't think you have addressed before (hope it's not too kinky). I am interested in learning the technique for doing a prostate massage. My partner enjoys being anally stimulated and I am sure this would be a "winner" for us. I just need to know the proper way to do it.

1) Is it true that taking those Emergen-C packets or any other vitamin supplements can effect the effectiveness of your birth control pill?

2) I know antibiotics can lower the effectiveness of birth control, but can probiotics or prebiotics, such as a floral acidophilus FOS, also decrease effectiveness? I've been taking birth control pills for the past 10 years with no scares or baby bumps, and I don't want to wake up pregnant one day because I took a capsule that's supposed to be healthy! :)

My best friend has AIDS and he's sexually active. He has unprotected sex with other men with HIV/AIDS. Should he use a condom instead or can does unprotected sex make no difference at all at this stage? Thank you.

1) Having read a few posts related to the question, "Is masturbation harmful?", most of the answers I've seen seem to suggest that the only possible harm could be psychological, in the sense that masturbation may be a distraction from one's normal routine.

What about the actual PHYSICAL side effects? Some things can not be dismissed as mere "wives' tales"! For example, when I masturbate often, I do notice a darkening under my eyes. I am only 28, but having been at this a while, it does seem as though I can not as easily become erect, or stay erect for as long as I used to. I may not have grown hair on my palms, but I have noticed (and I'm willing to concede that there may be no causal relationship here) that I have become somewhat hairier, in all the wrong places.

Please set the record straight as to what, if any, harmful PHYSICAL side effects may result from masturbation, and why, in the face of my testimonial and no doubt countless others, such symptoms as I have described are dismissed by yourself and your peers as "myths."

2) Does masturbation affect your growth if you are not yet fully grown?

I was just wondering about the difference in effectiveness between "ultra sensitive" and regular condoms. I imagine there is a greater chance of breakage with thin condoms, right? Sorry if this is a silly question, but for some reason, I thought I heard that there wasn't a significant difference.

Do you know if there is an alternative to nonoxynol-9 spermicide?? I'm allergic and was wondering if and where I could get it.

Thank you.

I believe I have a mild case of phimosis. When my penis is not erect, I can retract my foreskin all the way back to reveal the glans. However, when I have a full erection, it is impossible to retract the foreskin to that extent. I can only retract it to reveal the slit and top part of the penis. Due to this problem, I have a question about condom use. I'm still a virgin, so I have never experienced intercourse using a condom. When I read the instructions on how to use a condom, they almost always instruct you to retract the foreskin completely if you are not circumcised. Since I cannot retract the foreskin while erect, is it still possible to use a condom without retracting the foreskin, and will this complication affect slippage of the condom or sensation problems during intercourse? On a side note, why is it recommended to retract the foreskin fully before putting on the condom? Thank you in advance.

If my partner and I have been monogamous for three years (and I was a virgin before we met) and my partner tested negative for the HIV virus (twice, about two years ago, with a six-month gap between the tests) is it safe for us to use a birth control method other than a condom? That is, are there still any STDs that my partner might have without knowing it, that we should be worried about, even though nothing whatsoever has seemed wrong with either of us for three years and my partner has had several regular annual physicals in that time?

I have been seeing my boyfriend for four weeks. He has told me all about his past relationships. Is it safe to stop using condoms now?

I'm 18 years old and have never had sex. But three years ago, I started masturbating. And this past week I have been having swelling in my vagina. You can't get any STD on your own, can you? I'm scared to go to the doctor because I don't want my Mom to know I have been doing this. Please respond.