"Well, my gosh, look at that ass," Aniston, 45, said on The Ellen DeGeneres Show on Monday, Jan. 19, when Ellen DeGeneres showed the photo of the actress grasping her friend's rear. "It's such an irresistible tush."
"I'm allowed!" Aniston added. "Ryan Seacrest tried to get in. Kate actually did say, 'Oh well, that's gonna go everywhere.'"
The handsy moment took place on the red carpet as both women gabbed with Seacrest during E!'s preshow. Aniston was up for Best Actress in a Drama at the 72nd Golden Globe Awards, losing to Julianne Moore, who was honored for Still Alice.
The Friends alum, who was also nominated for a Critics' Choice Award for her work in the upcoming drama about chronic pain, Cake, was snubbed by the Academy of Motion Picture Arts and Sciences just days later, when the nominees for the 2015 Oscars were announced.
"I'm the number one snubbed!" Aniston lamented on The Ellen DeGeneres Show of the buzzed-about diss. "That's the silver lining, right?"
"It hasn't even come out," she continued of her film, which is scheduled to hit theaters later this month. "That's the crazy thing! We're so shocked and amazed that we have had this much love for a movie that hasn't even been released yet."
While Aniston has been narrowly missing awards for her part in Cake, the star said she has been celebrated for the film in different ways.
"What's been so incredible is the amount of people that have come out to me who are suffering with chronic pain and in this same situation," she spilled to DeGeneres. Aniston stars in Cake as a woman who is treating her chronic pain with a variety of medications and loses a member of her support group when the fellow sufferer commits suicide. "It's unbelievable how much positivity it's bringing to those who are kind of silently suffering. It's a beautiful, hopeful movie."