Justin Sisley, whose VirginsWanted.com.au auction site is part of his documentary project, said Catarina Migliorini, 20, received a high bid of $780,000 from a Japanese man identified by the name Natsu, ABC News/Univision reported Friday.
Sisley said Alexander Stepanov, 21, a male virgin offered on the auction site, received a high bid of $3,000 from a Brazilian woman identified as Nene B.
Sisley said he was skeptical of Migliorini's statements saying she was planning to donate 90 percent of her money to charities building housing for the poor in Brazil.
"I was surprised she said that because in all my dealings with her, she made it clear that it was a business decision for her," he said. "Now, given how big this story is in Brazil, she's trapped. If she doesn't give any money to charity, she's going to look bad."
The website said the sexual encounters will take place on planes flying over international waters to avoid violating any local laws.
Sisley's website said Migliorini will be examined by a gynecologist and Natsu will be presented with documentation verifying her virginity. Stepanov cannot be medically proven to be a virgin, but will present Nene B. with statutory declarations from two family members.