Marshall: Ted!
Lily: What are you doing here?
Ted: Robin and I aren't gonna move in together after all.
Lily: What happened?
[flashback:]
Robin: I thought we decided we were ready?
Ted: I know. How did we come to that again?
Robin: I don't remember. We were fighting? It's all so blurry.
Ted: Yeah.
Robin: The "let's move in together" sex was pretty amazing.
Ted: I know. I did that thing with no hands I normally need both to do.