It's understandable that the two can't really keep with Setsun, in this state. He, unlike them, has barely even begun when he feels the signs of their orgasm approaching. In fact, this only serves to give him renewed vigor, desperate to have their seed inside of him. He's groaning up storm now, his eyes rolling back slightly as he gives into the perverse lust that the drug was filling him with. His cock is hard and pulsing, ready to shoot the moment he feels the men erupt.