Ron drawing Harry inviting random people to his house and they all rip off their pants and throw a party.
I SEE NOTHING WRONG.
I specially love how Remus looks at Sirius in the pants-less moment XDDD
I'm definitely going to be telling people that they're looking particularly pants-wearing from now on. xD
"And you know what else..." Ginny's expression... Ron's expression... Oh, it's all to love!