@Milanin
That wouldn't be quick enough, she'd either be sold by the time they'd find someone not in the pocket of the traders, or she'd be moved during a lay-low scenario, or, finally, the traders will just capture/kill them with paid thugs.
Because we all know the bad guys always have eyes and ears everywhere and the fact that there's a dude going around trying to stir up trouble would be caught wind eventually. Only thing they could, quickly, do is to storm the place themselves. However, his power is solely based on sexual arousal and random at best and they don't know what they're up against with two people. Chances are she'll be killed in the process.
So yeah, "buy me" is probably the best, easiest, less hassle option.