Son asked - Daddy,what is the difference between potential and reality?

One day during the family lunch the youngest son Paul asks his father:

• Daddy, what is the difference between potential and reality?

Daddy turns to his wife and gives her a question:

• Would you sleep with George Clooney for 1 million $?

• Certainly, I would never waste such opportunity, - tells the wife

Daddy turns to his teenage daughter:

• Maria, would you sleep with Brad Pitt for 1 million $?

• Surely! He is my fantasy, his posters are all over the walls of my room

Daddy turns to his eldest son Raul and asks:

• Would you sleep with Tom Cruise for 1 million $!

Eldest son thinks a little and replies:

• Why not? Imagine what I could do with that money. So yes, I would sleep.

Then daddy turns back to his youngest son Paul and explains him:

• You see, Paul, potentially we are sitting with multi millionaires but in reality we are sitting with two prostitutes and one gay…