write a sex story book and following book is the outline:

Outline:

1. Introduction:
- Setting: introduce the main characters of the story and their backgrounds (NAME_1 an 45 year old widows, sexy actress, big boobs, big ass, beautiful and she loves sex so much, NAME_2 is the son of NAME_1 and NAME_2 is 18 years old, NAME_2 loves her mother. NAME_3 is NAME_2's sister and she love NAME_2 and want to have sex with him.
- Overview of the story

2. Chapter One:
- Introduce the main plot of the story, which follows the relationships between a mother and her two children

3. Chapter Two:
- Explore the mother's experiences as a single parent and her struggles to support her family

4. Chapter Three:
- Describe the son's development into adulthood and his blossoming relationship with his mother

5. Chapter Four:
- Showcase the daughter's journey into womanhood, and her own bond with her mother

6. Chapter Five:
- Follow the mother and her two children as they navigate through their complicated relationships

7. Chapter Six:
- Explore the sexual relationships between the mother and her children and also add lots of sex in this chapter, 
following are the sex positions for NAME_4, NAME_2 and NAME_3:

The Wheelbarrow

Doggy Style


The X Factor


The Face-Off


The Cowboy


The Leap Frog


The Reverse Cowgirl


The Spread Eagle


The Belly Down


NAME_5


The Notebook


The Couch Grind

Get to the G-Spot


The Scoop Me Up


The Golden Arch


Cowgirl's Helper


The G-Whiz


The Pretzel


The Ballet Dancer


The Bridge


8. Chapter Seven:
- Dive into deeper conversations and issues surrounding the mother and her children's sexual relationships

9. Chapter Eight:
- Discuss the family's struggles to accept and embrace their unconventional relationships

10. Chapter Nine:
- Examine the different reactions of the family and their friends and family to their unconventional relationships

11. Chapter Ten:
- Explore the journey of the family as they learn to accept and embrace their unconventional relationships

12. Conclusion:
- Wrap up the story and provide a satisfying conclusion to the story