Strange Wild Women (1988)

Dr. Ulises, a vacationing anthropologist gets stranded upon a large supposedly deserted island, where he discovers two tribes of tribal females with one of them being jungle savages and the other one being somewhat a little bit more communicative as he has them listen to his audio tape of disco music while learning to live their lifestyle and falling in love with a native woman, Bluman. Soon the island life becomes major hell when a group of pirate-like marauders arrive and enslave both tribes. Dr. Ulises and Bluman escape from captivity and try to rescue both tribes.