Rib & Side In One Sitting

Hi Guys, I want to get my rib and side done. The whole tattoo is in black with grey shading and is about 13" long. I got told by my artist it would take 3 - 4 hours to do. Can this be done in one sitting or would it be better to get the outline done first the the shading later. I would perfer one sitting but is the pain that bad on the ribs and side. Only got one other tattoo on inside of bicep which is script and that didnt hurt one bit, It felf very relaxing lol

Getting it done next week so any answers would help, thanks

you will have to set through the outline work.talk to your artist about this and see how youre doing after the out line work and go from there.best of luck.