Old man gets cuckolded by stepson and his girlfriend

This is a story about an old man who got cuckolded by his stepson and his girlfriend. The young couple was very much in love, but they didn't have enough money to support themselves. So, they decided to make some extra cash by selling their bodies. The stepson and his girlfriend came to the old man's house, and they started fucking right in front of him. The old man was very surprised, because he had never seen anything like that before. The young couple was very good at what they were doing, and the old man couldn't resist watching them. The stepson was very big, and the old man's wife was very small, so it was quite a sight to see them fucking. The old man was very turned on by what he saw, and he decided to join in. The young couple was very happy to have an older man join in, and they fucked him as well. The old man was very happy, because he had never had such a good time in a long time.