My entire extended family - mom, sisters, aunts nieces, everyone - were avowed nudists. We time-shared a nice place in a secluded nudist resort and each of us were free to come and go as we pleased.
In addition to nudists, they were all free-use practitioners.
Every weekend, I'd find a different family member to have my way with...
This weekend, it was my sister, Suzy's turn to enjoy the place.