Awww, this is so them. Honestly, you are a genius when it comes to capturing Artemis and Wally's personalities and dynamic. Bravo!

GUMBALL RINGS ! clearly the best kind!

Aww, i feel so warm and fuzzy! That was really sweet! I loved it, great job. Really.

"Oh god what have I done." ... You made again something so Sweet that I melted and became pudding 3

This was perfect. Another amazing story. Nice job.

This was quite the nice piece, although I do wonder what the original might have looked like.

Now for the elephant in the room, the smuttiness.
It's not really visible that it's your first time writing this but that could be due to the fact that you've already written so much. The actions themselves aren't unnatural or awkward, for as far as I can tell.
While I'm sure that you'll improve upon this in the future I couldn't possibly imagine how at this point in time.

Congratulations, your smuttiness was quite good. :)

Soooooo friggin adorable! :3 I love it!

the ending was really cute :3

This was an excellent story. You did great with it. I loved it.

You have er... Are about done something horrible and unforgive if you don't write a sequal or another chapter in which everyone flips out because they can't find Artemis or Wally.

Love it :)