Wayne has had it up to his eyeballs with his disobedient children. So when Wally goes streaking he attempts to grab him only to get a squeal of laughter from his captive. So being a bit of a brat in return he pins and tickles his son senseless. Wally's not really good at resisting it seems

Wally and Wayne (Hotel Transylvania) belong to Sony Pictures Animation
This page also belongs to  Ticklishfennec