Daddy and I were wrestling the other night and I was trying to pinch his nipples. He couldn't hold both of my hands easily and he was tiring of the game. I, on the other hand, wasn't even close to being done. He finally got me pinned and told me to call Uncle. I was not about to give up that easily, even though I knew Daddy was getting irritated.
The longer I struggled, the tighter he held me, and it was starting to get uncomfortable. Through gritted teeth he growled "call fucking uncle!”, as he finally caught both my arms and bear hugged me. I couldn't stand it any longer so I yelled "fucking uncle". Daddy immediately burst out laughing and said "you only needed to say uncle".
We laughed for the longest time about that and we agreed that should be my new safe word. We'll see if he ever makes me yell it again.