Imagine.....

"Jim! Would you stop poking my cheek? Goodness..." You couldn't contain your laughter as Jim grinned at you with humor, his grin just seeming to get bigger and bigger, making you happier.

You haven't seen Jim in what felt like ages, and you just came back to Gotham City from a trip the GCPD sent you on for work, so of course the first person you ran to was Jim.

This guy has been your best friend since you were both teens. You went through training together. You went through just about everything together. 

"Sorry! I'm just... really glad you're back (Y/N). I may have missed your hard demeanor. But more importantly, your smile." And somehow, he still makes you blush like that teen you used to be, just taking you back to those times....