I had double 2 yrs ago. I thought nothing of it. They had the saline and particular kind of needle thing it goes in where the metal piece is at the top of the temporaries. You do know there is a metal piece right? You can hang paper on a magnet. Lol. Anyway it goes right in w no pain and fill as much or little as you want. I didn’t want large, so I think they did it 2-3 times. They need to be where u want them or stop as soon as you get measured for radiation and they plot it all out for the laser. Or whatever the radiation is.
Remember something: This is your body, you make the rules for what they do for you. Make appts as you want, only do what you are comfortable with. Make the size your choice. They will come out after about a year. Dr will decide but my dr waited nearly a year to date for permanents.