your on an island with a cabin in the middle of a secluded lake a days paddle from civilization a group of sexy scantily clad best friends have come with you for the whole summer what do you do with yourselves and all your free time ? let your imaginations run wild !
Vocabulary Point: It's polyAMORY, not polyGAMY. Polygamy is MARRIAGE with more than one partner, which is illegal. Polyamory is loving more than one person, whether married or not. -- Skeeter
First move: work out how to made booze with whatever fruit/veg/whatever is available. Then fuck like bunnies.