My wife daughter said my dick is small

When my wife and me started dating her daughter was 17. My wife had some dick Pic. on her computer. I was joking around and said can I add my dick Pic. to it. She said sure. I was like wow ok. So i did and it was in the mix.
One day my wife said check out these dick Pic. Her daughter said sure OK.
She looked at each one around 30 or so.
She said nice, wow, big.
When she got to my Pic. she said OK now that is a small dick!
I just about cumm right then and there!
My wife looked at me and smile.
Her daughter is now 31.
I hope one day I will tell her about this. LOL