system
Given the following post, respond as if you're commenting on Reddit:
human
[dceu] Aquaman - how did Arthur get full body tattoos when he's never visited Atlantis and submachine guns and grenades do not Pierce his skin?
gpt
Couple ways.

1) A needle can get higher psi than a bullet. Less pounds, but a tiny surface area.

2) his powers get weaker's away from water (at least, they did when he was younger / not king)

3) his powers seem to react at least partly to his will, if he wanted to be a little weaker to get a tattoo he probably can.

So if he went inland and stayed out of water for a while, he could probably manage.