Penny And Sheldon 2 + 2 = Fish

There are a lot of fan fiction stories of "The Big Bang Theory" on line. Here's mine:

One day while looking around her apartment Penny decided to buy new furniture but she had no  extra money. So to make extra money Penny made a bet with Sheldon for $350 that he could not solve a puzzle. They both agreed on a 12 hour time limit.

After putting up her swivel green chair for collateral  that Sheldon loves so much , Penny took out her compact  from her purse and  started  to powder her face and  told Sheldon this puzzle:  2 + 2= fish,  3 + 3 = 8 and 7 +7 =triangle.

"I got it" said Sheldon "You just ate fish at the Bermuda Triangle". "Nope, that's not it" said Penny "I will tell you the answer in about 12 hours.

After the 12 hours were up Penny told Sheldon the answer, she also told him she gave him a hint with her compact.What does the compact contain?  For one thing it has a mirror.Amy and Bernadette were also in the room.

Penny goes on to explain: " When you take the mirrored image of the number 2 and overlap it with the original image  of 2 you get  a image of a fish."

"With the mirror image of the number 3 if you overlapped that with the original image of 3 you get the number 8"

"Now with the mirrored image of 7 if you overlapped that with the original 7 image  you get a triangle"

Sheldon was amazed and told Penny "That's clever, how come I did not pick up on that  ?"   Penny explained "Well, Sheldon ,you are too use in thinking in scientific terms that you usually over look the most obvious "

Sheldon   writes a check for $350 and gives it to Penny. "Wait, Penny don't leave until I deduct that amount from my balance" .After which Penny takes off to go shopping.

When Bernadette was sure that Penny was out of hearing range ,she began  to speak "That was very kind of you, Sheldon"  (Sheldon pretends that he has no idea what Bernadette  is talking about.)

Amy speaks up: "Oh common Sheldon !, We all know you knew the answer  all along ,and it is all right to have a soft spot for Penny. After all, Bernadette and I love her too, she's our friend."

[ But why is Sheldon being so generous ?  It's because one Christmas Penny gave Sheldon an  napkin autographed by Leonard Nimoy that he wipe his mouth on and Sheldon can't seem to pay Penny enough for this extraordinary gift ]