Big sister jerking off in the middle of the night, about to finish when she’s interrupted by a knock at the door,
Little sister comes bursting through, big sister quickly covers herself with the blanket, little sister hops right into bed, sniffling and holding back sobs,
The older girl quickly shifts, or tries to shift, to big sister mode, comforting the girl as she buries her head in the older girls budding chest, after a little poking and prodding she recounts some nightmare about being chased, before asking to sleep with her older sister, that she’s too scared to go back to her room,
Older sister begrudgingly agreeing, wanting desperately to deal with her still raging hard on the younger girl has yet to notice,
Little sister quickly gets comfortable, grabbing big sisters arm and smushing it to her own chest, between her much larger and more developed tits, sliding back into a spooning position, big sister panics and tries to hide her hard on,
But her hands are full and there’s nothing between the two of them, little sister coming to rest mere centimeters from her half chub, her back against the older girls chest,
Quickly nodding off to sleep as the older girl tries to stay as flaccid as possible with her hand smothered in her sisters breast, and her cock brushing up against her sisters soft ass, the only barrier between her and the girls slick, a pair of soft silken panties,
The older girl tries to control herself, but it’s no use, in no time she finds herself rock hard, hips bucking at their own pace, she tries to stop herself, but her mind is weak,
Not like the younger girl will notice anyhow, the only time she stirs is when big sis tries to retrieve her arm from between the girls tits, finally she gives in completely to her bodies desires, saying fuck the consequences,
Angles herself between the younger girls thighs and cupping one of her soft breasts in her hand, she slides the girl further back into her before continuing to buck into her,
She doesn’t stir one bit as the older girl gets closer and closer, gently holding the younger girl still as she starts to move faster and faster until she’s right on the edge, burying her face in the younger girls shoulder and biting her lip hard as to not make a sound, sliding her cock right up against the warmth of the younger girls cunt, before unloading a days worth of girlspunk onto the thin fabric,
Praying that it doesn’t stain, praying that it doesn’t get through, praying that she’ll be able to sleep finally, she pulls her sister in close, not even removing her cock from between the younger girls legs, before quickly drifting off to a deep sleep,
The younger girl waits until she’s sure her big sister is asleep, before sliding one of her hands down and taking as much of the older girls jizz as possible in her fingertips, sliding her panties to the side and using her sisters spunk as lube,