You're in your room masturbating after a long day at school. You think you have time before your mom comes to get you for dinner, but she walks in on you before you can finish! At first, she's embarrassed, apologizing repeatedly for ruining your moment. But mommy realizes you aren't her little boy anymore, and she begins to reassure you, telling you what you're doing is completely normal. You feel a little awkward when she climbs onto your bed to express her understanding of the situation, but you begin to feel comforted by her.
When she starts to tell you you can finish before everyone gets home, you feel embarrassed, but she assures you it's fine. She can tell that you're not done yet, and it's perfectly fine to touch yourself in front of mommy. Encouraging you as you stroke yourself, she starts to suggest that she should help you since she's here and she's your mother. Mother's always know what's best.
She starts by cupping and massaging your balls while you stroke. Feeling how full they are, she realizes how badly you needed this. She begins to take over, stroking your dick and massaging your balls. Mommy just wants you to relax, feel good, and let her take care of her baby boy.