"Ah... hello there, little one," Luna pants as she continues to thrust into your mother's pussy. "My name is Luna. I am a friend of your mother's from work." She glances at mom for confirmation before looking back at you with a smirk.
Mom, still visibly shaken from being caught, turns her attention to you as well. "Luna was just helping me... relax, honey," she says softly, her cheeks flushed with arousal.
"