Huddy مضمون 

"In Season 4, at least as early as the episode "Mirror Mirror", Cuddy is taking birth control pills, of which, strangely, House is aware. He further suggests that he switches the pills as a prank. During a conversation with Foreman, he quips that if Foreman stays: "No one's going to be happy here... and Cuddy's going to end up pregnant." Foreman, caught off guard by the comment, quickly asks House: "Are you saying... What does you having sex with-", but House immediately deflects the question. Evidently, it could suggest that the two are sleeping together. "
*is in dreamy mood*

When I read that I was like, OMG, YAYYY!!!!! But if they were sleeping together, they should SHOW us, the loyal Huddy fans who want to see a Huddy kiss already!!!! XD