Me and my best friend want to get a very simple tattoo together. Its a stick nd poke tattoo that we do at home.?

one of us would get a small x and the other would get a small o. Where could I get this tattoo so that my mom or family won't see it. I was thinking on my hip, like the area covered by underwear. Any suggestions? Im 16 btw
Update: I searched it online and the use black india ink which is carbon based and non-toxic. and its not something big its a tin little star or 'x'
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