Cleaning the Fountain of Youth

I once saw my girlfriend peeing when I was in the shower and I told her that I wanted to eat her when she peed. She laughed. Some weeks later when she came home from a night out, she had the giggles. We got to bed, she had to go the loo. When she came back she ordered me to lay down on my back and she hovered above my head. I was ordered to lick her clean. I came hard when my tongue touched her pussy.