Woodcock Complex

Where two people do the same action, however one person is attractive and one is unattractive. The action from the attractive is seen as cute and funny, where as it is seen as weird or creepy via the unattractive.

"Mike slapped her butt, and she thought it was funny. So did I, but now I have a restraining order"
"Looks like a bit of a woodcock complex, mate"