Some story i was told SeXStoRY

One day i have the oportunity of my life, my old s****r (27 yr) came home d***k, i wake up with her laughing a lot, she run for the bathroom and next to her bedroom, past 1 hour i step up from my bed and snake her bedroom, when i see her she didnt take her clothes of and is in her face down with her legs closed, she as a long blue skirt to her knees, and is snoring very deeply and noised, my s****r didnt snoring so i think she is realy passed out, so my cock is now very hard in my boxers, so i think, maybe just pull her long skirt up so i maybe cold see her ass, and here we go! very carefuly i lift her skirt and i can see her beautiful white panties, her panties are a bit large, oh fuck!!! i have too masturbate my cock so i pull down my boxers and start masturbate seeing her asscheeks, i start having a lot of pre-cum so i think, maybe if i slide her panties too the side and see her butcheeks. so i step up to the bed and carefuly with one hand i pull her white panties to the side exposed a large part of her butt and with the other and i continue masturbate, in the same time i think "sheeet!!! she is my s****r, wath a fuck i am doing???" but this opurtunity and my dick a few inches of her nice butt is realy amazing, sudently a drip of pre-cum fell down in the middle of her asscrack!!! i pull her panties a little down if i can see a little of her pussy lips, very softly i start seeing a little labia cover with very hair,SHEEET!!! GOD I HAVE TO RUB MY DICK IN HER BUTTCRACK!!!! shes keep snoring so with one hand i open a little her buttcrack i have too see her anus, and there it was, hairy... im so horny, and start put my dick in her crack, pull her up and down slowly, FUUUCK, the feeling is amazing, and is may s****r butt!!! i keep rubbing in her anus, i didnt f***e too put my dick in, i have a big fear too awake her and this are feeling so good... i rubbed her crack with my pre-cum, and having touch a little of her hairy pussy lips, i rubbed maybe a ten times up and down, and sudently i have too cum, i didnt take long with so much pleasure like this, with her buttcrack all wet with my pre-cum... i take my hand and start jerking on my hand but is a hard orgasm, a best orgasm in my life, in my old s****r!! i never see a lot of semen out of my dick, hard spasms and when i see two jacts of semen are in her ass... SHEEET!! i put her panties in her place take down her blue skirt, and run for the bathroom, when i wash my hand and think on what i do... i do the best experience of my life with my hairy s****r!! I am (18) she are (27) and this is a real storie. i never have other oportunity like this one, becouse my s****r dont like drink too much, that day was a special day...