James, hearing Sirius' "speech", came out of the bathroom, with a triumphant flush of the toilet. Upon entering the room, he smiled brightly. He stepped next to Remus and gave him a slight nudge with his elbow. Deciding to save him, he cleared his throat.
"Forgive Sirius' brain damage. Remus is perfectly capable of speaking with a woman. Sirius is simply insane," he said, taking a step forward and offering his hand to Tonks. "I am James Potter, and it's a pleasure to meet you."