Okay so, Connie's really likes in-depth plot lines and stuff and honestly given Open Book she seems like she'd be the kind to write fanfiction. Ronaldo is Ronaldo and fits the concept a lot of people have for bronies. And Steven just likes things.
So here's these three having meetups and talking Royal politics in Equestria. Steven spends 90% of it being more focused on Cadence and Shining Armor's wedding because he likes that sort of thing.
Drawn in part because I've seen a lot of snarking back and forth between these fanbases and thought it would be cute to do something with them playing nicely together.
Added sad headcanon: Steven likes Cadence because she’s pink, her symbol is a crystal heart, and her whole thing is about love. She reminds him of his mom.
Another added sad bit: patchworkpoltergeist​ on tumblr pointed out that both Cadence and Shining Armor’s magical thing is shields. I didn’t even think of that but it’s perfect.