alvin: literally grabbing the couch and rolling his eyes back into his head, unequivocally either getting some of the best head or experiencing an climax that's unparalleled, either through edging for 30 minutes to an hour or more, or the techniques being used here are some of the best possible on planet earth
theodore: in the middle, while i agree with the theory of him post climax, and you can argue that "well it must be good head if he came so quick", but that would imply that theodore couldn't edge and therefore didn't experience the most pleasurable climax
simon: having to use both hands to make the head he is getting pleasurable, which is telling enough of the difficulty he is having achieving climax.