It's obviously about sex, but I can't help but feel that it's specifically about a first-time homosexual experience. The lyrics "How'd you get me up against the wall so high?" and "I never thought that I would take the fall" indicate the singer being a bottom for the first time, and "Now I want it all" means he's now open to more homosexual experiences, having enjoyed his first.
It's obviously about sex, but I can't help but feel that it's specifically about a first-time homosexual experience. The lyrics "How'd you get me up against the wall so high?" and "I never thought that I would take the fall" indicate the singer being a bottom for the first time, and "Now I want it all" means he's now open to more homosexual experiences, having enjoyed his first.