'X-Files': The Mulder-Scully hookup

Season five: The romance

Tender moments: Nothing says “I love you” like curing your partner’s fatal brain cancer, which is exactly what Mulder does. This proves to be a good icebreaker, as the agents loosen up enough for them to dance to a Cher tune and for Scully to sing “Joy to the World” to Mulder in the Florida swamps.

On the subject of children: Scully discovers she has a daughter she doesn’t remember giving birth to, but the girl dies and her body vanishes.