Some Secret Sister Hanky Panky

You run your index and middle finger along Elsie's moist slippery slit as she pulls your panties down a bit and lightly starts to stroke. From outside it just looks like two people sharing a blanket and watching a movie.

Your mother sits to your right happily munching on some popcorn. She smiles and offers you the bowl. "Want some?" You both shake your head no. She then notices the slight blush on both of your faces. "Aren't you guys hot under there?" Once more you both shake your head. She grins and returns her attention to the movie.

Fiona on your right is watching the film with halfhearted interest. She doesn't seem to dislike it, but she also wasn't really that into it either. Every so often she checks her phone, occasionally sending off a text.

Beneath the blanket things were heating up. You could feel Elsie's excitement as your fingers became more and more wet. Her light soft stroking was driving you mad. Both of you were flushed and starting to breath a bit heavier. You did your best to act normal, your eyes locked on the screen though not really taking it in.

Your hand was resting between El's inner thigh and her balls as your fingers pleasured her. You press your middle two fingers into El, she was sooooo hot and wet for you. You can't get much penetration with this angle but it was enough. She can't help herself but to let out a cute little noise. Your mother says without looking over. "I know right? He is really hot!" Referring to the male lead who had just made an appearance on screen.

Fiona however does look over. The pair of you look at her with what must have been hilarious looking expressions as you both tried to pretend nothing was happening. She just smiles knowingly and shakes her head at it.

You slide your hand up and down, your fingers pulling out and running up over Elsie's stiff little clit before sliding back into that humid Garden of Eden once more. Her hips move with you, just slightly so as not to show on the outside. Her silky light touch gliding up and down your dick bringing you along for the ride.

This continues for some time, eyes locked, faces flushed, both of you breathing hard and sweating. Beneath the blanket both of you being teased and aroused to escalating sensations of passion. You are pressed together side by side as tight as you could get.

El is the first to plunge over the edge. She is wiggling and writhing slightly, her legs pressed hard around your hand, her breathing picking up even more and tiny soft moans escaping from her despite herself. Luckily your mother was pretty engrossed in the movie. El bites her lips and her face scrunches up. You feel her whole body tighten then release beside you, a funny muffled whine emanating from her.

Just then Fiona says. "Hey Ma, can you pass the popcorn?"

"Of course dear." She responds. She passes the bowl across the pair of you to her eldest child. Poor El is left trembling and clenching her jaw as she tries to ride out the wave without showing it. Fiona grins at her sister and gives her a teasing wink.

Your mom just smiles at you and returns to the show.

El lets out a breath of relief. At this point you were hitting your moment yourself. You let out a little grunt and your hips start making quick little bucking motions. El, trusting your mother was properly distracted, slips under the cover and wraps her warm mouth around you just in time to catch your eruption of love juice. You sit there tense as a board not moving a muscle, eyes staring blankly ahead, as your member throbs and spurts into Elsie's sucking mouth. Fiona sits trying desperately to stifle a laugh as she watches your reactions. El sucks hard and quickly, trying to get it all out of you as fast as possible. She slurps up off of you and her head appears up beside you just in time for your mother to turn in your direction. Elsie's eyes are wide and innocent, her mouth closed as she makes a hard swallow.

"Can I get the bowl back please?" Your mom asks Fiona who hadn't even taken any of it.

"Sure Mom." Fiona smiles, then looks at you. "You guys want some? Maybe you need a drink Elsie?"

You both giggle and look at her with a playful guilt in your eyes. Now, of course you could have done this in the open with your family being who they were, but this had been so much funner.