Captain America and Thor Kiss in January at Marvel Comics

Is it the hammer? Is it the wings? We’re not sure what’s bringing these two together, but on a cover for a Marvel Comics issue in January 2016, Thor and Captain America are kissing.

No, not these guys:

I mean, of course, these two, Captain America (Sam Wilson) and Thor (Jane Foster):

The cover, Marvel Comics confirmed, is for All-New, All-Different Avengers #4 as painted by Alex Ross. The pair share billing in the series, a new Avengers comic book that’s launching alongside a slew of other Marvel Comics #1s over the course of the next six months or so, establishing a new status quo for the Marvel Universe after the events of Secret Wars.

But on this new cover posted to twitter by Marvel.com editor Ben Morse, they’ve gotten a lot closer, sharing a mid-flight kiss.

His caption: “January 2016: Earth’s Mightiest Kiss.”

Check out the full cover below and look to the pages of that comic for more on this budding relationship.