I'm boggled at the fact y'all quite a few of y'all think this isn't assault. Is Matthew in a drugged out state and doesn't realize it reality instead of a dream change that fact. Heck no. Is easy to understand if you put yourself in that scenario. Jin is clearly telling him no in this moment. Him liking it rough in a scenario where they are both willing participants is different. And has no one remembered the fact his is recovering from being shot in the stomach and having had surgery. He could only fight Matthew off so much before really exasperating his injury which happens anyway because he's being assaulted. He even says Matthew is going to get it when he's sober and the fact where his suspicions about Matthew being super drugged up becomes truly clear. Jin "going with the flow" of the situation changes nothing because he literally had no choice at that point and his usual response for his kink kicked in. There should seriously be no dispute on whether this is assault or not. Insanity. With all that being said... Matthew is definitely going to hate himself when he's conscience and I'm at least glad Jin will tell him he remembers him now.