So I been with my bf for 2 years I have a son, 5, from a past relationship and he has one, 4, from a past marriage and i recently just had our daughter, 7 weeks. We are not married I don't plan on getting married but he does. Anyway, story for another time, I want to get a tattoo of his sons name on me, who calls me mom and I say thats my step son or just my son. I know she would probably get mad she got mad when he started calling me mom, she don't really like me she just deals with me. Should I get her permission, or maybe just hid it what she don't no won't kill her. Or would it be something we need need to be married for him to actually be my step son. I mean it's just a tattoo. I want to get all my kids tattooed on me.