Let's talk to Jessica first, see what she thinks...

You look over and see Jessica huddled at the other end of the dinner table. At first you think she is frightened of you, with her legs up on the chair, almost curled into a ball, but then you realize she was actually masturbating! You feel a little relieved; you like Jessica and don’t want to scare her and this way you can tell she is excited by you and your new cock.

You gentle move Britney off of your lap and set her aside where she rests in a daze. You get up and approach Jessica. As you draw near she uncurls herself, and you openly view her naked body again. Her short curly hair sets off her soft young face, Jessica always did look younger than she actually is. Despite just turning 18, most people would swear she wasn’t over 15. Other than her very large breasts and newly toned figure you could see why they would mistake her for a child.

Your eyes stray to her chest, where her lush swollen mounds rest glimmering with sweat and heaving with her every breath. Despite having recently played with them you feel the urge to grab them again and squeeze. People often think she looks ridiculous being so young and slim with larger breasts then most grown women, but they’re mainly jealous women who watch their men’s heads turn as Jessica passed by.

She unfolds her slender arms and shifts in her chair uncertainly as you stare at her. Her skin is soft and you run your eyes over her softly muscular belly down to her naked ass and womanhood. A quick thought from you removes any unsightly hair from between her legs and you gaze upon her virgin lips, noting dampness from her furious efforts to satisfy herself

“Jessica” You say softly “have you ever been with a man, in the way I was with Britney just now?” The look on her face changes from uncertainty to embarrassment.

“No,” She replies “No guys think I’m cute, not like Britney… all they do is stare at me and make fun of me”

You can see that Jessica still hasn’t realized that guys are honestly interested in her now, and believes that any guy who tries to approach her is mocking her. You don’t want your sister to feel that way, and you don’t want some sleaze taking advantage of her either… just then she interrupts your thinking.

“John will you teach me how to please a guy?” she says shyly.