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”?

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?

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.

I was wondering about the depth of the vagina. I've read statistics that say that the average vagina is only 3 to 4 inches deep. This seems way too small to me, since the average penis is considerably longer than that. Wouldn't that mean that most penises would crash into the cervix repeatedly during intercourse? Since this obviously doesn't happen, my question is this: does the vagina actually elongate during intercourse to accommodate the entire length of the average penis?

Dear Alice, 

I take Valtrex daily to protect me from cold sores I get on my face. I haven’t had one since I started taking it a few years ago. My partner gets cold sores on his mouth and has recently performed oral sex on me while having a cold sore. Will the daily Valtrex protect me from developing genital herpes? How will this affect me in the future?

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