how many did she do at once?

in some venues, the venue operator/owner requires condom use. It is also a matter of personal choice, pragmatism, and other factors.

Our experience has been that opportunities for gang-bang/group sex can arise spontaneouslyl, impromptu, or they may be planned, organized events.

Acquiring and validating test results in the former case is problematic, a little easier in the latter case.
As long as everyone is happy my hotsife has never had more than.4 but it.was all planned it.was.for.an overnight from.about 11pm.till.about 9.am.everyone left satisfied and sore