18+ Itazura The Animation

Katsuhiko is a master train pervert. He can pull off a feel, a grab, or even go all the way on a crowded train with girls he's never met. One day he meets a sinister pickpocket named Gin, who provides him with the ultimate target. Katsuhiko moves in on the gorgeous TV anchorwoman with perfect skill, but will he be ready for Gin's well-timed double cross.

(Source: ANN)