Half an hour earlier (Tom's POV)

"Man, she's really furious".

STUMPH

You hear Kim's door banging like a clap of thunder, but your next thoughts are interrupted by a pair of soft, luscious lips that take your breath away. Soppy clatters reverberate in the living room for a good thirty seconds.

-What was that for?-.

-Nothing in particular.- Your mom coyly answers. Her digits rub the fabric between your legs, you let out a sigh preparing yourself for what's coming. Only, it doesn't come.

-Honey, I have to ask you a favor.-.

-Uh-uh.- You nod, intrigued by her worried tone.

-Cindy is about to arrive, and I have the impression... oh, maybe I'm overthinking, but... can you keep an eye on her and your sister while she's here?-.

-An eye? How?-.

-Well...- She smiles maliciously, an expression you've never seen on her until two days ago: -You can lurk in Kim's room.-.

-What?!- You stutter: -Are you serious?- she is: -How could I?-.

-Let me help you with this.- She then goes to the sink and starts washing the dishes, then yells: -Kim! Could you come here please?-.

-I suggest you hide.- She whispers, referring to you be dazed. You recover just in time, avoid being seen by your sister and sneak upstairs while she's dealing with Mom.

"God, what's going on? Am I really doing this?" You ask yourself, violating your sister's safe place. She hates when someone, you especially, enters without permission. Her room is clean and candid, much more than yours. Outside, silence. This is a once-in-a-lifetime opportunity. You move to the closet, opening a random drawer.

Wow! You turn around checking none is coming, then return admiring your loot. This is where she keeps her bras! You sink your hand into the lingerie, feeling the cotton brush and sometimes even the silk. Jesus, it's... there's plenty of them... would she realize if one gets missing?

-That's a bad idea.- You stop and close the drawer, but as you're tempted to quit you hear steps going up the stairs quickly. Panicking, you open the wardrobe and throw yourself in. Kim opens the door, the mood gloomier than before, but then the doorbell rings and your mother calls her again.

You witness unpronounceable words coming out of your sister, and she exits. It must be Cindy, meaning that in no time they will be there. Oh god, what do to? Do you have time to go out in safety? Probably yes, maybe, but your mother's words hold you back for a few seconds too long.

"S-She counts on me, right? She wouldn't have asked me if it wasn't important." Time runs out: Kim and Cindy enter, the former slamming the door once again. You peek from the slit. Cindy looks scared from her grumpiness: being her best friend, she knows as much as you how Kim is when she's angry. Nevertheless, they begin to study. Minutes pass and nothing happens, so you start to be distracted by the clothes between which you slipped; in particular, you have summer dresses on both of your sides, the ones she wears when it's particularly torrid outside. Maybe... Maybe there's still her smell on them. You lift one sleeve and sniff.

Of course not, it has been washed. Yet, you can imagine her wearing that see-through, light blue attire, doing poses in front of you. You touch the deep v-neckline, here you would feel her tiny breasts... and down there, her pussy...

Suddenly Kim screams and you are terrified of having been discovered; instead, you notice she's still sitting, but she's clenching her head in pain while Cindy is shaking her, pleading for a response. However, a few seconds later it's over and she dismisses her friend rudely. She has said something about a limit, but you didn't get the sense of the phrase.

Then, something incredible happens: Kim gets closer to Cindy and forces her into a kiss, and another one, heedless of her protests. Is-Is this what Mom meant before? Gosh, it's very hot, they are using their tongues like pornstars, the same way your mom did with you. Your little friend spring into life, you move to grab it but the scene is so arousing that you lose your balance and fall forward.

The girls stop abruptly, sighting you after a jolt. Shit, shit, shit!

-I, I can explain!- You pant while getting up.

Cindy has an apparent ictus, while Kim is raging: -You... you... you perverted fucker!!! What the fuck dude??? You were spying on us!!!-.

Dude?

-No, I mean yes but it wasn't...-.

-In my room, like a stalker! I should, I should report you! Oh, wait for Mom to know this, you're so grounded!-.

You feel like replying that she's the reason you are here, but you can't risk being heard by Cindy, even if she's not very present at the moment. If Mom comes here you don't really know what would happen and something very intimate could leak; you have to avoid that dead end, and you say the first thing that comes into your mind.

-Oh yes? And I'll tell her what you were doing! You attempted to... to **** your friend!-.

Her eyes snap open: -That's none of your business!-.

You don't know how is working, but it's working: -Besides, both of you were saying you would have "dealt with me", even if I didn't dirty your car, and you know it!-.

-Listen you rat, I won't tolerate being blackmailed in my room, moreover by you!- Despite it, she's lowering her voice. Could it be that she's actually scared by your mom's reaction? Is there something else going on?

Finding herself speechless, she charges trying to punch, or slap, you, but you push her away with your superior strength and she drops on the bed. Her face is furious, but humiliated too, and... damn, and you like it. You feel powerful, you feel in charge, and surely you fell still horny from before. You then look at the semi-infarcted girl, who is slowly calming down, nothing in common with the viper who looks at you with contempt and superiority every time you meet.

You know what? They deserve a bit of punishment, and you deserve your ****.

-Tina is gone and Mom too, or else she would have come. This means we're alone, so now you'll do as I say.- You command, effectively sounding menacing.

-Since you were going to **** her, I want you to undress her!-.

-What?- They exclaim simultaneously.

-Fuck off, I don't take orders by you!- Kim gives you the middle finger.

-Jesus Christ, I'm going home!- Cindy states disgusted.

It's all falling apart and you know that you should be relieved, but you're too addicted to this delirious authority. You won't allow that.

-If any of you two goes out I'll tell Mom everything. So keep your... bitch in place.- You say that word with difficulty, but it reaches its goal. Kim tugs Cindy by her wrist and obliges her to not run. After all, she's still pending by her lips, as always.

-You're an asshole.-.

-I'm only asking you to resume where you left. Just with a spectator.-.

-Ugh! Fine!- She agrees reluctantly: -You'll regret this!-.

-Kim... do we really have to do it?-.

-So it seems.-.

You're almost bewildered it's so easy. Could it be... could it be that, deep down, they want this? Cindy may not be a lesbian, but she always had an obsession for your sister; while she, uh, she seemed to like it when you insulted her while you were fucking. I mean, she's not strangling you right now, she's ready to comply!

-Enough talking. Start with her shirt.-.

-Moron, it's a top!- Cindy retorts.

This is going to be really strange.