Phillip might end up wanting to turn the toy down as much as his sake as for Gustavain's. There's no protest to him leaving it on, but neither is there any sign that Gustavain is going to stop, either. He swallows around him as they both find release but without any respite from the toy, he also doesn't pull off of him. It's not entirely clear if he can string the brain cells together to-- he can't seem to really find the coordination to keep any kind of a rhythm either, is just dragging his tongue mindlessly against his cock, and he manages to look upwards at Phillip when he cups his face, is responsive enough to lean heavily into the touch, but his eyes aren't wholly focused.

He looks fucked out, not necessarily alarmingly so, but definitely "worse" than a single round ought to have gotten him and, if Phillip leaves him like that for more than a few additional seconds, a series of increasingly deep shudders seem to roll up his spine while he starts to moan in a way that sounds delirious, over-whelmed. If Phillip can take it, it seems like he might just roll right from one orgasm to the build to another, even if it doesn't sound wholly comfortable, despite the utter lack of protest.