He was a young guy of 18 years of age. She was a lady 48 year old. They lived in the same neighbourhood and she was a close friend to his mother for the last 5 years and knew him since he was a young teenager.
Whenever she was at his home they used to be playful. She loved to be kiddish with kids and he always found her amusing and interesting in her games.
She was childless and married to a man much older than her, who over the years had lost all interest in sex and they hardly had a physical relationship over the last five years.
One of the favourite games they played was hit and run where actually one person would playfully slap the other person and run away out of reach of the other person. She would also spend time with him playing some indoor board games both at his house and slowly began inviting him to her own house. Of course her husband was never at home on such occasions and his mother never suspected anything to go wrong as it was a very playful mother-son relationship that had bloomed between the two over the years.
Months and years passed and they continued this playful relationship. None had ever any sexual thoughts or connotations for this beautiful relation that had developed between two people separated by sex and age.
The young teenager had matured into a nice tall lad of 18 years and his body had begun to shape like a man with wide shoulders and chest. But to him, she was always his playmate for games they played together over the years and the time he spent with her was always enjoyable.
She was now however becoming conscious of her young teenage friend moving towards becoming a man and secretly admired his body and the lack of physical relationship in her life made her long for his company more and more and raised fantasies in her mind to possess his body with hers.
Then it happened one fine day. She had gone to his house to meet his mom and spend some time with her for typical neighbourhood gossip. He saw an opportunity, as she was busy talking to his mom standing in the kitchen to play the hit and run game. As he approached her stealthily from behind without making a sound, thinking to give her a playful slap behind her shoulder and run out of her reach, she bent forward while on her legs a bit at the final movement and slap missed her shoulders and landed hard on her big wide ass.
She yelped and turned around, but he ran away laughing out of the kitchen shouting he was one up in the game, not realising the embarrassment and pain he had caused her. She didn't run after her but quietly rubbed her ass where his hand had made the hard contact. She remained with his mom in the kitchen and left after a couple of hours of gossiping.