According to the 'recaps' of the two episodes, this is what we actually missed... Fat Joke
Episode 4: Mike is nervous about Molly seeing him naked, so he won't come inside to say goodnight. She takes it personally and doesn't want to see him anymore. He gets drunk and climbs a ladder to her bedroom to serenade her. He climbs in, but gets stuck (of course). His buddies help him get in the window, but they're too drunk to do anything else.
Episode 5: Carl is jealous that Mike spends all his time with Molly, so they go on a double date... with Molly's sister Victoria. The dates goes pretty well until they see Michael Jordan (??) and Victoria disappears. Mike takes Carl home and then goes back to Molly's but her mom thinks he's a burglar so she hits him on the head. Again no sex.
So yeah, we didn't really miss much. And now for Episode 6... Mike and Molly Have Sex!
"...The awkward moment portion of the evening." / "The looming question." / "Who gets the leftovers?"
"Why are you smiling?" / "Why are you smiling?" / "I'm smiling because I get the leftovers."