The company said the two are a real-life, long-term, promiscuous, bareback couple. Roscoe is HIV positive while McGuire is HIV negative.
Studio owner Paul Morris flew to Chicago earlier this week to personally sign Roscoe and McGuire to represent T.I.M.
"As a community we have a moral and social imperative to demolish the HIV-positive closet," Morris said.
"We are adults and we are participating in a tremendously vital and important sexual culture that is under attack. We know exactly what we're doing and we will not allow reactionary individuals and organizations to dictate our behavior. James and Brad are fitting role models for young gay men. They are living their lives with honesty and integrity. I couldn't be more proud to have them in the T.I.M. family."
FSC's Executive Director Diane Duke told XBIZ that such conduct is at the center of the efforts to find appropriate regulations for the adult industry by both Cal/OSHA and the FSC.
"Despite our opposition to a state-imposed mandate for the universal use of condoms, FSC does not endorse the exploitation of potential HIV infection of performers for promotional purposes."
T.I.M. said it's currently shooting work that features HIV positive men. The company said that the first of these HIV positive-only bareback titles is slated for general release next spring.
In celebration of the Roscoe and McGuire resigning, the company has released a never-before-seen bareback sex session featuring the two men together.
The scene is currently streaming for free on the studio's premier site TimFuck.com.