I had a kid and have a tattoo on my chest that runs around my breasts. They stretched during the first few months of breast feeding, but now that things are normal, they don't look that bad. I think it just depends.
skin tattooed or not, so long as you get it hydrated, will keep its shape whether pregnant, or weight gain and loss. There are woman who never get stretch marks, and its because they take care of their skin.