i have really good mates that get THIS friendly when they are drunks, we hug, we even do the grandma kisses on the cheeks and mouth, and they are all straight and we are all super drunk, this doesn't really mean anything
i'm not denying it or anything i'm just saying i know STRAIGHT guys that get even friendlier than this when they got the beers, the smoke and the acid in, NOTHING wrong with that