Archaeologist Mara Rivers was searching for a sign of an offshoot Incan civilization in the depths of the Amazonian rain forest, in Colombia, when her crew was attacked by armed men, and she was kidnapped.
Eventually she released herself and was relentlessly pursued by her attackers. Only her fear allowed her to keep running until she was saved by what she had been seeking in the first place.
The female warrior that struck down her attackers was beautiful and majestic. Mara loved her at first sight, but she would find out there were many secrets about her, and one of them was the reason why her people split up in the first place.
Lost in the Jungle is a book in the Futa Archaeology series. It features futanari (hermaphrodite), breeding and futa on female.