Thoughts on 2 middle names

Ta

My son has a middle name that is from my husbands side. We don’t know what we are having yet and we were discussing middle names, I always planned on using my nannas middle name (which is also my own) and he says he would like for us to use his mums name as a middle name as well. I don’t really like the idea of 2 middle names but don’t know what to do now. My middle name is Marie and my mil name is Judith