If you work as a tattoo artist, then sure. Otherwise, you won't find a job anywhere. Not saying that's fair, but it's just the way it is. I'm not trying to talk you out of getting a tattoo, because I love tattoos, but I'm just saying that that's the worst spot you could get it. Get it where it won't be visible under a t-shirt.
Not on your neck! maybe someone where else and instead of lips ya could try matching tattoos or something else.