Benny was a boy that wanted to trade his Wobbuffet for a different Pokémon. While he offered many people his Wobbuffet, many refused. When he was about to trade Wobbuffet at the machine, Jessie came (dressed in a lab coat) after blasted off by Tauros and accidentally switched her Lickitung for his Wobbuffet. Benny was glad he traded Wobbuffet, but wished Wobbuffet good luck with his new master.
Benny's new Lickitung used to belong to Jessie until she accidentally traded it for Benny's Wobbuffet.