What does getting a tattoo feel like?

I'm only 15 but my heart is so set on getting a tattoo when I'm old enough to actually get one. I was thinking about getting a small heart on my lower back and I don't care if it's a tramp stamp, people can think whatever they wanna think. I don't care. But I also was thinking about getting one around my hip area, the one with the bony part. And one around my ankle. I'm not going to get them all done at once but these are the ones that I might get. I just wanted to know how bad these will hurt on each individual body part. And also how it feel like getting a tattoo. Sorry for this being so long. Thanks!