When it comes to the identity of one of her more “germophobic” costars,Allison Janney’s lips are sealed.On Thursday night’s episode ofJimmy Kimmel Live!, theMomstar revealed that she once had a scene partner, pre-COVID-19, who had a very unusual request for her during one of their kissing scenes.“He was such a germaphobe, he wouldput Neosporin on his lipsand ask me to put it on mine, too, before he would kiss me,” said Janney, 61.AfterJimmy Kimmellaughed and said, “That doesn’t do anything!”, Janney said, “I didn’t know [what it would do] but I took it very personally, though.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.Jimmy Kimmel (L); Allison Janney.Jimmy Kimmel LiveShe continued, “I thought, ‘What does he think I put in my mouth?’ I don’t know. It kind of unnerved me, but people are germaphobes.““By any chance, was thisHowie Mandel?” asked the host, 53. (Mandel, 65,suffers from obsessive compulsive disorder, with a fear of germs.)“You might think so, but no, it was not Howie Mandel,” Janney said. “I will not say who it was.“The conversation came about after the actress said shegets tested for coronavirus"seven to eight times a week, depending on whether or not I’m going to be doing kissing scenes.“Allison Janney.Rich Fury/GettyRELATED VIDEO: Allison Janney Calls the Bird inI, TonyaHer “Favorite Animal Co-Star Ever” — Here’s WhyMom’s eighth season premiered in November, with the notable absence ofAnna Faris, who exited the CBS sitcom after last season.Janney — who plays Bonnie, mom to Faris' Christy — previously toldEntertainment Tonightthat her costar leaving was “a huge loss for the show.““She was part of creating a character, Christy, that everyone fell in love with, who was so lovable and warm and gullible and funny and we will miss her so much,” said Janney.She continued, “Ithink I’ll miss the most, for me, the relationship between Bonnie and Christy, even though that will still continue. But she won’t be present. That’s what I’ll miss.“Momairs Thursdays on CBS at 9 p.m. ET/8 p.m. CT.

When it comes to the identity of one of her more “germophobic” costars,Allison Janney’s lips are sealed.

On Thursday night’s episode ofJimmy Kimmel Live!, theMomstar revealed that she once had a scene partner, pre-COVID-19, who had a very unusual request for her during one of their kissing scenes.

“He was such a germaphobe, he wouldput Neosporin on his lipsand ask me to put it on mine, too, before he would kiss me,” said Janney, 61.

AfterJimmy Kimmellaughed and said, “That doesn’t do anything!”, Janney said, “I didn’t know [what it would do] but I took it very personally, though.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Jimmy Kimmel (L); Allison Janney.Jimmy Kimmel Live

Jimmy Kimmel, Allison Janney

She continued, “I thought, ‘What does he think I put in my mouth?’ I don’t know. It kind of unnerved me, but people are germaphobes.”

“By any chance, was thisHowie Mandel?” asked the host, 53. (Mandel, 65,suffers from obsessive compulsive disorder, with a fear of germs.)

“You might think so, but no, it was not Howie Mandel,” Janney said. “I will not say who it was.”

The conversation came about after the actress said shegets tested for coronavirus"seven to eight times a week, depending on whether or not I’m going to be doing kissing scenes.”

Allison Janney.Rich Fury/Getty

Allison Janney

RELATED VIDEO: Allison Janney Calls the Bird inI, TonyaHer “Favorite Animal Co-Star Ever” — Here’s Why

Mom’s eighth season premiered in November, with the notable absence ofAnna Faris, who exited the CBS sitcom after last season.

Janney — who plays Bonnie, mom to Faris' Christy — previously toldEntertainment Tonightthat her costar leaving was “a huge loss for the show.”

“She was part of creating a character, Christy, that everyone fell in love with, who was so lovable and warm and gullible and funny and we will miss her so much,” said Janney.

She continued, “Ithink I’ll miss the most, for me, the relationship between Bonnie and Christy, even though that will still continue. But she won’t be present. That’s what I’ll miss.”

Momairs Thursdays on CBS at 9 p.m. ET/8 p.m. CT.

source: people.com