the story of the man with the big penis

A man has a 50 cm long penis. He always thought it's a bit too big. The man then decides to talk to a friend. This friend tells him to go see the famous forest magic frog, because as soon as it says "no", something narrows.
He decides to go to the forest and finds the frog:

• You are the magic frog.
• Yes.
• Magic frog, will you marry me?
• No.
  And hop, less 10 cm. But 40 cm is still too much.
  The man goes back to see the frog.
• Magic frog, will you marry me?
• No !
  And hop less 10 cm. But 30, it's always too much, he decides to go back one last time:
• Magic Frog, want - you marry me ?
• No, and when I say no, it's no!