It would be stupid easy to deflect with a joke, probably about his own dick and Ossie's thirstiness, but a dick joke would definitely be a dick move in this moment of shared vulnerability. (So, put a pin in that.)

Besides, Sharky wants to ride the wave of relief he feels! He sinks even further into his chair, deflating with a big sigh. "Oh, thank fuck, man, I just spent way too long panicking all over Pratt's shit thinkin' I fucked shit up catchin' feels like a moron and makin' shit awkward." If he thinks it's weird to say any of this in front of Ossie, he doesn't show it. (Because it isn't, and he doesn't!) "But, I mean, how could I not?? You're hot as hell and you're super smart and really sweet and, like, I'd have to be an actual moron to not, uhh, you know. Have a thing for you."

No Ossie-related awkwardness here, he's just in the Words Don't Work So Good phase of the conversation.