Longtime friends and X-Men costars Sir Ian McKellen and Sir Patrick Stewart shared a full-on kiss at the premiere of Mr. Holmes at the Odeon theater in Kensington, Britain last night.

Stewart and his wife were at the event to support McKellen, who plays an elderly Sherlock Holmes in the film. The three posed together for photos on the red carpet before the best buds turned to each other and locked lips, sending the media into a frenzy.

Some suggest the kiss was a nod to Stewart's critics, who recently lashed out by calling the actor "homophobic" for expressing his opinion on the hot topic of Christian bakeries which refuse to provide cakes for same-sex couples. Appearing on the BBC program Newsnight, Stewart, who is straight, claimed he "supports their rights to say no."

Related: Patrick Stewart Says He Supports Bakery That Refused To Make “Gay Marriage” Cake

Responding to critics on Facebook, he later wrote, “Some have conflated my position on this single matter to assume I’m anti-equality or that I share the personal beliefs of the bakers. Nothing, absolutely nothing, could be further from the truth. I have long championed the rights of the LGBT community, because equality should not only be, as the people of Ireland powerfully showed the world, universally embraced, but treasured."

McKellen, an LGBT activist since coming out in 1988, doesn't seem to be bothered by any of it.