Found my nieces knickers SeXStoRY

This happened quite a while ago now, i was looking after my niece for a few days, she had wanted to stay with me instead of going away for the weekend, i had no problem with that and so agreed. It was the evening and i was about to cook dinner, she asked if she could go shower, with that she went to her room and then went to the bathroom, i heard the shower start and went to my room to get something, her bedroom door was open and there on the floor was a pile of clothes, i don't know what made me think of it but i decided to investigate and there still inside the jeans she had taken off were her knickers, immediately and without thinking i pulled them out of the jeans and opened them up, they were really cute and to my amazement they were wet through in the crotch, i raised them to my face and buried my nose in them, inhaling the sweet odour, just a minute ago her pussy was pressed up against this material and by the looks of things she had been having naughty thoughts, they tasted divine as my tongue flicked at the wet patch of material, i walked to the door of the bathroom and stood outside listening to her in the shower as i did this i dropped my trousers and pants to the floor and my cock sprung to attention, rock hard and begging to be wanked, with her panties pressed against my nose i rubbed and caressed my hard cock, all the time thinking about her pussy next to the material knowing that she was literally 6 feet away from me showering as i sniffed and wanked to her smell in her sweet knickers, i knew it was wrong but damn it felt so good and i just couldn't help myself, i was so turned on i knew it wouldn't be long before i shot my load so i went back to her room and wanked furiously, i immediately felt that lovely sensation and with a deep breath taking in all the sweet smell of her panties i shot my load over the floor, loads of thick creamy cum covered the floor, i bent down and wiped some of my cum with the crotch of her wet panties so our juices mingled then put the panties back as i had found them, on the bed i noticed she had got clean clothes ready and there in the middle was a clean pair of panties, knowing she was going to put them on i picked them up and wiped my cock clean with them, i then checked to see that she wouldn't notice any of my cum on them and put them back, as i left the bedroom heading downstairs i heard the bathroom door open, i headed back to the kitchen and carried on with dinner, about 10 minutes later she joined me downstairs, she was wearing her baggy pyjamas, she was all smiles and we chatted, she dropped her bracelet and bent down to pick it up, as she did her pyjama bottoms just moved down far enough to expose the top of her panties and to my pleasure she was now wearing the ones i had just cleaned the cum off my cock with, just the quick glimpse certainly got me feeling all hot and bothered again and i couldnt help but smile.....