To answer the initial post, I have an ownership tattoo (words including my Mistress's name) located on my pubic area very close to the base of my penis.

I'm not entirely sure how it was first raised as an idea. I think it was something we both talked about and liked in kinda fantasy terms at first... and as time went by it became more and more something that felt real and desirable.

Of course there exists the possibility that one day it might be a source of awkwardness (although I reckon if I grew my pubes it would be pretty well hidden ) but still not regretted I think....