I came home early from work to find my wife sat in the living room.
Completely out of character she told me to get my cock out and wank off in her face.
I got such a hard on and whipped it out and started to toss myself off in her face vigorously. Just as I was about to come her mother walked in from the kitchen holding a freshly made cuppa. "There mum" said my wife "I told you he was a dirty sex obsessed bastard."