Brining people to tattoo appointment?

Hey so I'm getting MY FIRST tattoo in April, I've been talking about it for a year and have had multiple people offer to come with me. My artist doesnt care if i bring someone.

There's only two people I want to go IF I even want people to go. My cousin and a friend. However I dont want them to meet cause I feel it will be weird. (Unrelated info).

Anyway I'm also a introvert and idk if i want company at all or just go by myself since its my first. Its probably going to be a 3-5 hour session and I'm thinking about inviting my cousin for the first half then asking her to leave (nicely some how?) then inviting my other friend for the last hour or so. Is this rude?

Also becsuse im an introvert should i even bring people in the first place? Will the pain im in make me intolerant to people??