I would just be clear when you make your reservations who you are traveling with. I have had hosts request the names of those that had traveled with me..(my 27 year old daughter). I as an Airbnb host myself do not require additional informaton on guests traveling with the AIrbnb guest. I use the guest who reserves the reservation as my guide. If you have a good history, you would want to keep it, so I would assume there is little chance there would be a problem.
As long as it is your listing and you are staying with the new group you are fine. It is not a 3rd party booking and AirBnB does not require all guests to have an account. I have an account and travel with my spouse, each of my children and my best friend frequently.