Regulus put his legs down; they were beginning to cramp up. "Oh, um, you mean lubricant? Sirius, that great, big buggering arsewipe has a tube hidden in the drawer of his bedside table. 'Neath the girly magazines. You know he let Potter fuck him?"
He licked his lips, leaning forward to watch Severus breach his entrance with a fingertip. "Fuck, Severus, I can't stand it. Wet a finger and slip it inside me. Stretch me for you cock. Please."