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?

My boyfriend has trouble ejaculating, usually taking a long time. I was wondering if it could have to do with his constant masturbation during most of his young life. Could it be that the problem is me? Is there a possibility that we can improve the situation?

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?