In Harry Potter there is a game called Quidditch. In Quidditch there are two players called "Beaters" who beat the bludgers around to protect their team and try to knock the other team off their brooms.
Fred and George played Beaters for Gryffindor.
Fred and George do not want to be licked.

I dunno, seems to me that they'd love being licked... depending on who was doing the licking.