When I masturbate, I can never achieve orgasm. I've never had an orgasm and I think I am not concentrating enough. After a while, it just gets annoying down there and I give up. Any tips on how I can concentrate more or what I should think about?

Can condoms be used for masturbation? Or is that a waste?

If one masturbates but does not get involved in any other sexual activities, is that person considered to be sexually active?

I know this sounds gross, but sometimes when I get turned on, I like to rub my "vaginal area" on a stuffed dog. After it, I feel good, but a few minutes later, some discharge comes out on my underwear. What's going on, and is this safe?

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?

I was wondering if interval training could improve my ability to achieve multiple orgasms in one night. I had a friend who said he masturbated two times a day for three weeks, three times a day for another three weeks, four times a day for three weeks, and so on. He said this improved his stamina. I want to increase my output of semen as well. Any thoughts?