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?

Some of the girls at my school talk about how their boyfriends got to first, second, or third base with them. I feel kind of left out because I don't know exactly what they are. Could you tell me what the bases are for girls and guys? I'd really appreciate it.

I have a latex sensitivity, but would like to perform safer oral sex. Are lubricants on non-latex condoms harmful if ingested? I can't seem to find non-latex, non-lubricated condoms anywhere.

1) Both you and the Columbia AIDS manual note that the risk of AIDS transmission by unprotected cunnilingus is less (at least when the woman's not having her period) than via unprotected anal/vaginal intercourse. What I'd like to know is, how much less? Are there any statistics? Are there any documented cases of AIDS being spread this way? If so, how often does it seem to occur? It's difficult to know whether it makes sense to take my chances unless I know what the chances are.

Also, both you and the manual say transmission can't occur without contact with a mucous membrane. I have another AIDS brochure that says there's at least a small chance the virus could pass through tears around the cuticles of the hand. Is this the case, and if so, how great a risk is there in putting your fingers in somebody's vagina or anus for extended periods?

2) What are the risks of HIV infection for the passive partner of oral sex?

Here is my situation: My b/f and I had anal sex, and this was not the first time we've done it. But this time was different. After we were done I noticed there was something that kind of just popped out from my bottom. It's like a piece of your skin or muscle or something. I kept trying to push it back in, but it keeps coming back out. It doesnt cause me great pain, but just a little bit of itching sometimes. What is it? What should i do with it? Is it bad? Please let me know. Thank you.

I've always come to this site to either browse through others' problems and compare them to my own and because I've been sexually curious for as long as I can remember. Recently, a guy I've been friends with and I have started to "get to know each other." Last night, this question arose: How exactly do you "suck balls" and what are the benefits? I looked through everyone's questions, and I didn't see this one.

My girlfriend and I have oral sex. I heard that if you blow in the vagina of a female that it could kill her. Is that true?

How does a man get infected with HIV through heterosexual vaginal intercourse?

My fiance and I frequently enjoy anal sex. We no longer use condoms with each other during vaginal sex or anal sex. He enjoys ejaculating in me during anal sex and I don't mind it. Immediately afterwards I go to the bathroom and get out his cum, but sometimes it takes awhile for it to all come out. I'm wondering if this is OK to do or if it is harmful to my body because I do enjoy it and would like to continue. I just don't know anyone else who does this and wonder if it could harm me in any way. I've been wondering so much about it lately that I don't want to have anal sex anymore because I'm worried.

I enjoy performing cunnilingus on my girlfriend, and every so often, I get a sore throat. My question is, is it all right to perform cunnilingus on my girlfriend if I have a sore throat? Or is there a chance that whatever causing my throat discomfort could cause her trouble as well? Can the “giver” of oral sex pass along sore throat germs to the “receiver”?

I am a well-adjusted late twenties male with a steady girlfriend. Lately, I have been increasingly fantasizing about various types of anal penetration. I have discovered that during masturbation, this brings me very intense pain/pleasure. Even though I think it may be satisfying to experiment with a vibrator or other objects inserted by my girlfriend, I find myself drawn toward trying the real thing (i.e., having anal sex with a penis). The problem is, I definitely do not consider myself homosexual and, in fact, the thought of the actual act with another man actually repulses me. Am I trying to have the real thing without going through a bisexual experiment or what?

I currently use NuvaRing for contraception. Because the ring slowly emits hormones into the body via the vagina, my partner and I are wondering whether he will have an unhealthy amount of contact with these hormones during oral sex. Thanks.

If one has a long-term partner and neither AIDS nor any other STD is a concern, is there any medical reason not to perform cunnilingus on a menstruating woman? My significant other is particularly horny during her period and would love cunnilingus at this time. I am willing but curious.

I am just curious about sex, and why is it such a turn on?? Is it the physical contact or sexual actions?? Or is it endorphins spreading through the body while it is happening??