I guess the subtext here is pretty evident.

James Hetffield singled out a hot girl in the front row of a Lubbock show for little oral action (what, singing is "oral", right?). Sorry, but I'm just reporting the facts here. You can tell by James facial expressions that he's pretty impressed by this lady. It's also pretty obvious that James is alluding to a specific sex act. He even follows up with the comment "that looks pretty good in her mouth, huh?". But damn, the girl can't sing, that parts pretty brutal.

Hey, it was the 80's, nearly every metal singer in ever metal band acted like this.