Jennifer Aniston

Plus, she revealed who she's "sleeping with."

"I don't think there was a sensitivity like there is now."

Both stars worked with the twin actors when they were children.

It's no surprise Jennifer Aniston's hair — a.k.a. "The Rachel" — made the list.

See the 'Friends' star's steamy magazine cover and photo spread.

He said Aniston had a "deafening lack of interest."

From friendly specters to demonic houseguests, these stars have played host to ghosts.

But was it really?

"Jennifer’s pretty much sold it to me that she’s not a morning person."

"We just literally channeled everything into Ross and Rachel."