I took a piss and found a purple mark on my penis. I have taken a blood test, and the results are on the way to check for HIV, but I can't wait. What do you think it is? Did I just masturbate too hard? I did just yesterday.

First let me just say how much I love your website and your terrific advice — it has saved me from a lot of embarrassing questions. LOL.

You see I am interested in buying a sex toy, preferably a penis sleeve or masturbator (for me to masturbate with). I have recently asked my mom about this and she does seem like it is open for discussion. The only thing is, she wants to know if the use of sex toys such as these (that vibrate or not) are safe and if I can damage my penis somehow or if there are any risks using these kinds of devices. I don't think there are any risks except for allergic reactions or not enough use of lubrication. But I am not sure. So please, please Alice, answer my question.

I have a weird question. My boyfriend and I were talking and he told me that men's balls move on their own throughout the day. I did not believe him so he showed me. He got undressed and laid back on the bed and told me to lift his penis and watch real close. I did and unbelievably, his balls moved. It's like they vibrated kind of like a heart beat. It was so cool. What makes a man's balls move alone?

Should a normal man's penis become erect for a certain number of times throughout one day (without any external stimulus)? Or, do these erections occur only while a man is sleeping? I have been masturbating once every day or every other day, and I have noticed that I rarely get any of those spontaneous erections during the day at all. Plus, I have been waking up with no morning erection during the past week. Have I been masturbating too much?

My roommate and I were wondering whether or not there was a difference in sleeping with a man with an uncircumcised penis or one that has been cut? My roommate's current boyfriend is uncircumcised and she has heard horror stories about sleeping with men that have uncircumcised penises.

I am a male who experiences a lot of spontaneous erection. It's almost comical. My problem is that I model nude for art classes and have difficulty preventing or getting rid of my erection. The whole thinking about something else idea never works for me. I was wondering if you could tell me of a cream or something I could use to prevent an erection or possibly make an erection go away. I've tried the usual muscle and arthritis creams, but those don't work. I can still get an erection anyway. Is there something that numbs for a period of a few hours that I could use? I thought of using some desensitizing creams you can find at adult stores, but didn't bother trying them because I figured they're designed to help you keep your erection, not lose it. It would be very helpful if you could help me out.

My friend had to have both of his testicles removed because of Testicular Torsion... will he be able to get an erection now?? What are the testicles for, anyway??

While reading some of your responses to female arousal, you say that the clitoris is as sensitive as the penis. Why is it then that when I touch mine, I get only a little pleasure, if any? Yes, I know where the clitoris is, so that's not the problem. What's wrong with me?

I am a twenty-one-year-old virgin who has just recently started seeing a girl very seriously. I am frustrated at how my body reacts to the slightest physical stimulus. Holding hands, talking about physical affection, even thinking about kissing gives me an erection. I am not thinking about sex, and we are not going to have sex until we are married, but I can't believe how frequent these erections are. I know it's common for guys my age to have erections, but just being with a girl I care about gives me one, and it's not easy to hide, and I don't want her to think the wrong thing. I used to masturbate and view pornography a lot but I finally stopped because I didn't agree with it. I stopped about the same time I met her. Do you think that my past is causing my body to want something I'm not going to give it?