Rai sighed and soon his eyes widened. "Fuck... So you know..." He said before looking away. He didn't have the energy or the time to come up with a believable lie. "Keep my secret. And I keep your's." He said calmly referring to this. Other inmates weren't so smart as to figure it out.And most didn't know her as well as Rai did. "Oh and I'm gonna need a few favors. But we can talk about those later." He added as he waited for the doctor. 

(Have him take a kidney or something like that.)