Phillip will shift one of his legs forward, to give Gus something to bear down on for a moment, but very soon after activating that setting he's switched them off it again, back to something slower and less likely to barrel towards the end. "You did say you didn't want to make a mess of your pants," he points out, dragging his fingers against Gustavain's scalp and the breathiness of his voice somehow finding the middle between the controlling start and his accidental show of feelings. There is something rich and heated in there too, perhaps a memory of how he specifically asked to beg before going home...

Of course, whether or not Gus decides to continue what he's doing is entirely up in the air. Phillip is not all that far off himself, if the way he's beginning to clench in hand in the other's hair is an indication, his breathing becoming shallower and quicker with every moment.