my lovely wife has several tattoos, two in what i think of as a tender spot. They are like stress therapy for her.
I asked & she said that sounds like a straightforward tattoo but if you don't have a lot of meat (laughed reading that above) and it's more bone than flesh it could hurt a bit. She added that these days they use a lighter touch on them so pain can be greatly reduced.
My thoughts were, i had a total hip replacement 18 months ago, the scar is still touch sensitive in spots. So my mind went straight to OUCH then to "... what a cool idea" , i could surprise her getting a first tat like you mention.