This post isn’t really PG.
Something one has to get acquainted with when in to K-Entertainment is how “close” men are. Boys are of course, much more comfortable with their male friends rather than female, and skinship is more accepted with two men rather than a man and woman. That probably comes from the crazy jealousy that girls do get every once in a while, when they see a guy they like coercing and getting touched up by another female.
Nevertheless, it is so much more mainstream and acceptable seeing something like this in Korea than say in some places in the West…
Infinity Challenge has had some experience in broadcasting such scenes, and HyunDong and HongChul have even done the double…. 
Super Junior did the same thing on their “Exploring the Human Body” show, so Infinity Challenge aren’t craving for some man action…Or…
Are…
They…?
Luckily, all men involved are in committed heterosexual relationships at time of print, coincidence or not? Perhaps it can be seen as a sign for potential mates?
Someone should have told 2PMs Park JaeBom that male skinship is greatly encouraged, for Idols especially, before he joined JYP. 
hahahahahahahahahahahahahahahahahahahahahahahahaha…..disturbed *.*