So, I've had this idea for a while and I'm now getting around to writing it.... 

------------------England's POV

I was sitting on the sofa watching the television and waiting for (Y/n) to return when something on the news caught my interest.

"World's largest diamond delivered to the museum for the exhibition!"

(Y/n), not again.. Love, please don't! I stood up and turned the television off before dashing upstairs to get my uniform on. I then dashed out the door and to the car, driving straight to the museum.

YOUR POV

Come on, (Y/n). I was in my thief outfit, picking the lock on one of the windows on the museum. I was the great thief known as the Yatagarasu (Let me know if you get the reference). No one knew my true identity cause if they did, I'd be arrested immediately. Well, that would be, if it wasn't Arthur who kept catching me. Every time I tried to steal something, he caught me. Why hadn't he ever turned me in? Well because of a circular thing on my left finger. I'd fallen in love with Arthur the first time I'd met him and when I finally confessed, he told me that he'd fallen in love with me the first time he met me too. And so, we were married within a year of us dating. 

I was in the middle of picking the lock on the room where they were holding the diamond when I felt arms wrap around my waist, "Love, I told you to stop this. You might not always get so lucky that it will be me who'll catch you."

"Arthur?! What are you doing here?"

"Thought you'd be here, Love, so, I came to bring you back home. I don't want you getting caught."

"Okay fine."

"Good, Love. I don't want to see you in jail. I love you too much." I smiled and sneakily pecked his cheek, "I love you too, Artie."

"Come on, Love. Let's go home before anyone else comes."

--------------

We soon made it home and just decided to snuggle on the sofa. I smiled and leaned my head on his shoulder, "I love you, Artie. So much. I'm glad that it's you that catches me."

"I'm glad too, but don't test your luck, Love. Please, give up the thieving."

"Okay, Artie. I will, for you."

"I love you, Love."