Derek sat up, got to his knees to kneel in front of Stiles, legs spread for balance, his cock heavy, thick with blood as it reached for the boy's mouth. He licked his lips, dragged his fingers through the soft brown strands before grabbing a handful, guiding his slave's mouth to his cock.
"Such a good slut for me," Derek murmured, pleased. "So eager to get that cock in your mouth, aren't you?"