I'm guessing here, but I would think that if you asked the Pope he'd tell you that such things where always contrary to central church teaching

Welll that would be a bit difficult to argue if you quote the

At St John Lateran in Rome (traditionally the Pope's parish Church) in 1578 as many as 13 couples were "married" at Mass with the apparent co-operation of the local clergy, "taking Communion together, using the same nuptial Scripture, after which they slept and ate together", according to a contemporary report.