[Rob!]

Yeah, it's a shame because it was just drunken messing around that went too far, but if a man had done that to a woman, the same would and should have happened. Hopefully it teaches Aaron a valuable lesson about boundaries.
People saying Joel did nothing to discourage it need to remember that he had the rest of the house, including the people he's close to, laughing and encouraging Aaron and sometimes in a situation like that, the easiest thing to do is try and laugh with it.