Best way to book and handle Couple's Massages

[samkw]

What's the best method to handle the booking of Couple's Massages with Square Appointments.  I don't see an option to book two staff/team members on the same ticket under the same service.  I can book two different services on the same appointment, and assign two different team members to provide the massage, but the two services won't run in parallel -- the 2nd service will start when the 1st service ends.  In a competing system, I am able to just book two separate services at the same start time (with diff team members) but then merge the tickets upon checkout to avoid guests having to pay twice -- but the merging of tickets/appointments doesn't appear possible with Square (correct me if I'm wrong!).  

Thank you in advance for any ideas, workarounds, etc. on how to handle this.  I'm sure I'm not the only day spa/salon with this situation.