lickbie

An adult male who covertly smells and may additionally lick the freshly used bicycle seat of a young (although not necessarily underage) female in order to induce sexual arousal.

Bobby: Didn't you used to know some dude that would sniff women's underwear?
Jack: Yeah, but he's kinda developed an addiction to sniffing girls' bicycle seats lately, it's weird.
Bobby: Wow, guess it's a thin line between a pantysniffer and a full-blown lickbie.