Matt Smith has told how Karen Gillan pinched the Doctor's bottom as they filmed her final scenes in sci-fi show Doctor Who.
The actress' character Amy Pond is being written out in a "heartbreaking" storyline.
Arthur Darvill, who plays Amy's screen husband Rory, was quoted as saying in The Sun: "The last scene we shot was inside the Tardis with all three of us.
"We were then in darkness and we had a big group hug."
Matt added: "We had a hug and Karen fondled me. I called her Fondling Bottom Gillan."
Arthur, who is also leaving the BBC One show, joked: "All those feelings kept inside for so long just suddenly came out."
Speaking at the Comic-Con convention in San Diego, California, Karen added: "I was in bits. I didn't want to go. There were tears, a lot of tears. But it is the best exit ever."
Former Emmerdale actress Jenna-Louise Coleman was unveiled as the Doctor's new assistant earlier this year.