WHAT

Exactly I wanted to see them so much I was even looked up pretty pottery designs and black ink tattoos to get a gist of it

Damon and Colty are both alphas, so it's possible they don't have a mark.
but who knows if in the future they will get it.

I wish the author made an extra about it, i wanna see it so bad

I think the author mentioned we might see it in the side stories