Severus smiled, lopsided and fond and faintly challenging. "Tell you what," he replied. "I'll fly in front of you, so you can't possibly run into anyone. All you'll need to do is to keep up with me. Don't worry, I won't go much faster than we are now. I'm just curious about how well you've been doing with your lessons."
He edged his 'broom' a little further ahead, turning his head and firing a 'come get me' grin over one bony shoulder.
Between said shoulders, Mini-Me slumbered on, utterly unconcerned by the slight increase in speed.