[wonderbread]

Any bony area will be painful. My wrist tattoo was actually my least painful tattoo. I take it you don't have a very high pain tolerance so no matter where you get it, it will be painful.
Either the thought of the pain will shy you away from getting one or your gonna just have to suck it up and deal with it. I have four and it hurts but I just have to get passed the pain. Not to mention you can always ask for a little break when the pain hurts. And don't think that a tattoo of that size will be done in one session unless your just actually getting outlined stars but if your getting them filled it will probably take two sessions.