Walk up to the desk and ask to book a tattoo.
Its not that bad, I can't really speak as I've only had my bicep done (probably the most fleshiest and painless of places). Mine started getting sore after the second hour, because all the parts he had already done were starting to heal, bit like a sunburn. Plus he's rubbing his hand all over as he's finishing off the rest.
You gotta think, couple of hours for a little bit of pain, and its there for life, easily bearable.
I've got 3 more hours booked, getting the outline touched up, shaded, and several flowers added.