John Mayer has quite the reputation as a ladies man and has dated many notable Hollywood babes, such as Jennifer Aniston, Jennifer Love-Hewitt, Taylor Swift and Jessica SimpsonKaty Perry suggests she may have tamed his womanising ways.
The pair were spotted at a party at Saint Felix in Los Angeles on Saturday, celebrating the birthdays of New Girl creator Liz Meriwether and Hello Giggles blogger Sophia Rossi.
A source at the party told Us Weekly that "John had his hand on Katy's back a lot and they were kissing and holding hands."
According to the source, "She doesn't want to be just another one of his conquests."
The New York Post have also said that John was seen turning down the attention of attractive fans at a cafe after a charity show on Thursday night.
”He was clearly not available,” the source said.
”It seemed like the opposite of the way he’s been in the past, like he’s really settled down.”
Does this mean that John's casanova days are finally coming to an end?