I just have to get this off my chest, The other day my daughter visited me with my pretty granddaughter, She's 10 nearly 11 and cute with little button nose and brown hair she will grow into a heartbreaker when she is older, So after breakfast my daughter asked if I'd look after June her daughter for the day, I was delighted and said I would after her mother had gone we watched TV and a DVD she wanted to watch with popcorn of course, Afterwards she began messing around giggling and generally having fun as girls do then she asked for a horsey ride which she has always loved so she sat astride my leg as I jiggled her up and down like she was on a horse as she giggled and whooped, Suddenly she seemed to change getting quieter and pressing herself down onto my leg she actually started to grind down on it as she bounced up and down, Her legs gripped my leg tightly and her breathing became harsh as she closed her eyes with a smile on her face, As I watched her I became hard she looked so angelic but quite sexy, I just sat there watching her bounce and grind her hand grabbed my other leg on the thigh and squeezed it tightly and said "don't stop grandpops" her brow furrowed in concentration and her eyes tightly shut, She then shuddered and let out a gasp as her legs clamped tightly against my leg as I stopped my bouncing of her she ground herself hard against my leg, Then she stopped opened her eyes and smiled sweetly at me and in a sweet voice said "thanks grandpops" She hopped off my leg and ran to the bathroom saying she needed a pee, I was rock hard I looked at my leg to see a wet patch on my trousers where she was sitting I ran my finger over it and smelt it the sweet smell of pussy hit my nose, I feel a bit guilty but she didn't complain in fact she gave me knowing looks and smiles ever since so I don't feel too bad.