Hot Summer Job/Let the girls go wild

Shaking your head with a big grin on your face you leave the squealing girls to go take a leak upstairs. You wrestle your semi from your pants and lift the seat. As your stream hits the bowl music starts playing from the living room. After a sigh a tug and a shake you put your dick away then notice the damp spot on the front of your pants. You lift your fingers and sniff...

...holy shit.

There's no doubt in your mind now. That was definitely Bree's juices on dad's shirt. And there's plenty more of her on your pants. She was getting herself off in your lap. In fact, she was getting off using your lap. It was obvious she was excited and enjoying herself, but even with dad's shirt as evidence you would have sworn she was too young to get wet.

Leaving the bathroom you duck into your room and change into some shorts. Since the temperature still hasn't dropped at all it shouldn't be weird that you decided to change.

You open the door to leave but you can't step into the hall. Something is lingering in the back of your mind; your curiosity.

Closing the door quietly - a pointless act with the music blaring - you step back into your room to where you dropped your pants. Grabbing them and flipping them over you stare at the crotch. A sharp sniff of the damp patch reveals an enticing scent, slightly musky but surprisingly sweet. You pinch the moist fabric between your thumb and finger, the fresh slick residue from your sister allowing your digits to slide effortlessly over the fabric. You hesitantly raise your dampened fingers to your mouth...

...then throw your pants to the floor. You wipe your hand off on your shirt as the guilt hits you. This is your little sister. You shouldn't be thinking the terrible things that you are, even if she's a bit of a hyper hornball.

Fighting your growing erection, pressing and willing it to go away, you head back down to the living room.

You've only been gone a few minutes and already the living room is a scene of chaos. Cushions have been tossed about. The furniture has been pushed up against the walls to make more room. There's a movie playing while the stereo simultaneously blasts some repetitive pop song.

Your sister runs by the staircase and through the debris field humming and giggling while eating from a large bag of popcorn, dropping at least as much as she's putting in her mouth. Larissa is jumping behind her in a pillowcase singing along to the music, a squealing one-girl sack race. It's especially ridiculous since her pillowcase barely makes it past her knees forcing her to jump crouched forward. Meanwhile, Kylie is recording herself on her phone running around the room to obtain random things to throw at the younger girls; pillows, DVDs, remote controls, she isn't particularly choosy.

You point to the far side of the room. "Hey, look! I think there's a piece of the living room you haven't destroyed yet!"

Bree jumps to a stop a few feet away from you, her skirt flapping wildly. "This is going to be the best sleepover ev-AAAH!"

An explosion of popcorn occurs in front of you as the leaping Larissa collides into the back of Bree. Apparently it's hard to stop when you're leaning and jumping. Bree stumbles forward a bit before falling in front of you. Larissa collapses in a heap, falling face first into Bree's ass. Your sister's skirt flew up her back when she hit the carpet exposing her round cheeks for Larissa to use like an airbag.

Kylie bursts out laughing, the entire event caught on video. Larissa and Bree giggle alongside her, although Larissa is obviously embarrassed to get a face full of ass and Bree is embarrassed to have been caught so spectacularly.

"Your butt broke my fall..." Larissa gets out through her giggles, causing even more laughter. Rissa sits up in her pillow case rubbing her nose. Bree jumps up to her feet, discarding the now mostly empty bag of popcorn. She lifts up the back of her skirt and moons her butt tauntingly at Rissa. Until she realizes Kylie is still recording. Then she screams and runs up the stairs and out of sight.

The rest of you have only just stopped laughing when your sis careens down the stairs again. She's slipped into a pair of red half-leggings, the kind you normally wear under a skirt. Except she's discarded her skirt completely, now outfitted only in the half leggings and a t-shirt.

"Okay, well now you have to tell us," starts Kylie. "What were you doing wearing nothing underneath a skirt that short?"

Larissa looks over at you then around the room aimlessly, becoming suddenly shy.

"I don't wanna say..." is all she mumbles. Is that an invitation for you to jump in? Or does she really not want to bring it up with the Callahan girls?

• Embarrass your sis and explain her dares

• Grab Larissa and throw her on the couch as a diversion