what do you fantasize about right before you shoot?
Most often I concentrate on the coming sensation itself (please forgive the slight pun), just before I orgasm, and I turn off any fantasy I was using to that point. At least when I'm wanking solo. Sometimes when getting a BJ I continue to focus on the fact that a guy has me in his mouth, which I find very exciting. As a top I usually return to focusing on the building climax sensation. When solo I use fantasies, but when with a man I don't use them - the man IS my fantasy.