Supposedly, one reason why we have no canon hugs, barring the doozy in Blind Man's Bluff, is that the UPN PTB (as opposed to Bilson/De Meo) started panicking about teh gay. But yeah, Jim and Blair are ridiculously boundary-less in all sorts of quite amazingly delicious ways. "No man, we don't need doors because you can hear me whacking off, and I know you know that I know you can hear me, so no problem..."