Ellen also asked Aniston about the possibility of a "Friends" reunion.
"I would like to know how that kiss happened with him," Aniston asked.
"He asked for a kiss," Ellen answered. "I don't normally grab anyone who asks for a kiss."
"Tell me, how was it?" Aniston continued. "Did you enjoy it? Were you nervous? Did you kind of get into it at all?"
"The Morning Show" star prodded for more information and asked when was the last time Ellen had kissed a man. In response, Ellen then turned the tables on Aniston.
"When was the last time you kissed a girl on the lips?" she asked her pal.
Ellen leaned forward as the audience began to cheer. The ladies then locked lips.
"That's what they wanted to see," Ellen joked. "They've been wanting that for years."
"You have such soft lips!" Aniston said and Ellen replied, "So do you. That's why I do what I do... No razor burn. Soft lips. Now you can add this to your Instagram."
Also during Aniston's appearance on the show -- where she gifted the entire audience new Apple iPhone 11s -- the star surprised "Friends" superfan, singer Charlie Puth.
While sitting on the arm of Puth's chair, Ellen asked Aniston the big question: Will there ever be a "Friends" reunion?
"No," Aniston immediately replied. However, she added, "Listen we would love for there to be something, but we don't know what that something is. So, we're just trying. We're working on something."
Ellen wanted to know more information about this possible reboot and asked if it could be a movie.
"A huge, huge, huge, movie," Aniston said. "No, we don't know."
"I don't know yet!" she added after Ellen continued to ask more questions. "I don't want to lead people on."
Ellen then pointed out how Aniston recently reunited with all of her "Friends" co-stars, including Cox, Kudrow, David Schwimmer and Matthew Perry. The now-iconic reunion was documented in Aniston's record-breaking first Instagram post.
Although Aniston said it was just a coincidence and the pals just "happened to be in the same part of the world," Puth and Ellen didn't buy it.
"Sounds like, to me, that there's something in the works," Puth said and Ellen added, "Nobody falls for that, Jen."
Sorry Jen, but we have to agree.
Got a story or a tip for us? Email TooFab editors at firstname.lastname@example.org.