I'm 16 and have never knowingly ejaculated or experienced orgasm. I've masturbated on numerous occasions but never been able to climax. However, every once in a while something thick and sticky comes out along with my urine. The same substance comes out occasionally when I wake up with the distinct feeling that I'm wetting myself, but this stuff is definitely not urine (I wake up actually wetting myself pretty frequently, and this is not the same thing). It might be semen, but it just comes out spontaneously during sleep or immediately after urination, without any connection to sexual arousal. And I'm not sure what semen looks like. So does anyone know what this stuff is, and for that matter is it normal to be unable to induce ejaculation by age 16?