The News & Observer in Raleigh, North Carolina published a story about a Duke University campus religious leader who is up in arms over a study at the university that invites female students to attend parties where they can buy sex toys.

The News & Observer reported Friday that the director of the Duke Catholic Center has lodged a complaint with researchers. The Rev. Joe Vetter says the study doesn’t promote relationships.

The study asks female students over age 18 to attend the events that are similar to Tupperware parties but with erotic toys, lingerie and games. The women complete surveys about their sexual attitudes before and after the parties and get product discounts.

A spokesman for Duke said the sex-toy party project went through the peer review process. Vetter says he plans to discuss the topic at Sunday mass.