Hi and welcome,
Getting hurt depends on expectations, depth and and list of other things not just the number of partners.
But if you are pain, drama and risk adverse this might not be for you.
Are you good at sharing? How much time do you to spend or plan to spend if you can get your head around this? Do you enjoy being spontaneous? Generally that doesn't work ...scheduling is the norm.
Lots of people after a divorce seem to gravitate to this because of being hurt...never putting all their eggs in one basket again.....emotional safety in numbers. Maybe use it to your advantage.