“And your little sister's immaculate virginity wings away on the bony shoulder of a young horse named George who stole surreptitiously into her geography revision”Your little sister is, well.... your little sister.
edit About your little sister
Your little sister is the purest, most adorable thing in the world. She's smart, pretty, and has lots of friends at kindergarten. She loves Sesame Street, but is just fine when you want to change the channel to watch Power Rangers. She has this cute little stuffed pony that she cuddles up with every night, and says the most adorable things in her sleep. But the sad truth is that little sister's possess mind controling abilities to win the affection of the parental figures.
edit But one day...
What is this?! You come home from high school and find your little sister making out with a boy with a biker jacket, tattoos, multiple piercings and a mohawk on the living room sofa. "How could this be?" you wonder. "I know for a fact my younger sister has a date with her boyfriend tonight, and he looks nothing like this barbarian!" Well, kid, I got some bad news for you. Your little sister's a whore.
I'm sorry dude, but it's true. She's really taken a hunger for ..., and she's been in the sack with more boys than a Boston Priest. Hell, even a few girls have gotten with her.
edit But How?
Dude, think about it. She's got giant tits, an hourglass figure, flawless skin, and perfect hair. She looks like a high schooler, and she goes to school with a bunch of horny 14 year olds. And to top it all off, she's easier than Big Rigs Over the Road Racing.
edit I Can't Let this Happen!
Refusing to let your little sister's innocence slip any further, you sneak into your sister's bedroom, which is now completely covered in male porn, and prepare to cauterize her vagina with a branding iron. However, as you look down on her naked, luscious body, you give in to your repressed oedipul urges and slowly enter your manhood into her warm, incredibly loose pussy. Immediately her eyes snap open, and they begin to glow red. You feel a sharp pain in your shaft. You pull out and are horrified to discover what are undoubtedly teeth marks on your shlong. Blood begins oozing out, and you flee in unbridled terror. Running from the house, you realize that you cannot get medical treatment without it being discovered that you tried to rape your sister. In a desperate attempt to escape the pain, you commit suicide, and become the latest victim of your sister's satanic vagina.
edit Alternate Ending!
Your sister's eyes snap open, and her look of shock becomes a look of passion. She pulls you closer, and over the next hour you explore every inch of each other. When you wake up, she has you swear to secrecy, and you are happy to oblige. Three months later, however, it all comes back to bite you in the ass. Your sister's pregnant, and it's yours. Due your parent's Catholic faith, they forbid her to have an abortion. Six months later the baby is born, and your sister says that only you can make her happy, and that she will never have sex with anyone again except for you. You both die from STDs that she caught from one of the many boys she slept with before you.