Riddler's relieved that Oswald moves his hand again, because it's too much, far too much for him, not until he can shut down some other inputs to avoid a meltdown.

And then, he actually blushes. Grins, but blushes, and nuzzles Oswald's cheek. "Well, thank you. I don't expect you to do a damn thing with it if you're not feeling sure." He kisses him again. "Now, stop fussing, and let me blow your mind, right?"