It's not so much teasing as it is simply giving pleasure, simple pleasure, touch and intimacy. Wesley nuzzles that length first, letting his cheek brush over the silky hardness of Q's erection. His gaze flicks up at those gentle touches to his hair and he opens his mouth, fitting his lips to the underline of Q's dick, dragging his mouth down along it, finding the base to suckle on it for a moment. Then open mouthed kisses down over his balls, tongue dragging up again from underneath and sweeping over the whole length while Wesley looks up curiously.