Intimacy and HIV (image) Brown University Caption Many HIV-negative gay or bisexual men in steady relationships with other HIV-negative men don't always use condoms out of a desire for intimacy. That same desire, according to a new study, makes such men more inclined to use antiretroviral medications to prevent getting HIV, a practice known as PrEP. Credit David Orenstein/Brown University Usage Restrictions with credit Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.