Sometimes it seems like everyone's talking about "Lost." Tuesday nights, your co-workers are instantly on Facebook asking, "What happened to that guy?" Your friends tweet, "OMG did you see Claire's hairdo on #Lost?"

We not even sure who's protecting the island and who wants to destroy it. But there's a lot viewers do know. Like who's hot.

A few characters are sexy every time they are on the screen. Like Kate Austen who runs around sweaty in the jungle. And Richard Alpert who is tall, dark and a little dorky.

The show's got everything. It's an intense mystery, a survival tale filled with killer polar bears and pirates, dynamite and time travel. The island heals some but is deadly to others (and sometimes both to the same person).

"Lost" is wrapping up this month with the series finale set for Sunday. Looking back over six seasons, here's our list of the show's top five hottest moments.

Steamiest Lost Moment No. 5: This Couple Cleans Up Nice >>