i hope that they are close to a swap but having watched them now dissapearing it looks like that door leads to an alcove leading to a balcony or something where they can smoke. and since they took the waterpipe with them couldn't they have been smoking weed? this i know would be frowned upon by management of the sights as i'm sure that it is not legal. also everyone is sleeping except sam who went to bed early. why would the others hide sex when we've seen the contact in the bedroom with eric & jess?