Let's move the discussion to the bedroom...

'Kim''s fondles are growing bolder, and your mind is intoxicated by the strange yet familiar pleasure that she's stirring in you. Her face tenses with the desire to pull you closer in a gentle kiss, blowing her hot breath on your lips from hers. That is her rosy, lucid lips, the ones you remember having moved your mouth for all your life.

Though, they didn't, did they? Not just because they are 'simply' morphed to be an exact replica; but also because you're not really Kim, but her perv little brother who has possessed her body and mind and has as well transformed her into this luscious extraneous milf; and yet it comes easier and easier to identify yourself as her rather than merely Tom, and this grafting of contradictions is dazing you like a bottle of strong liquor, enkindling a sensual warmth between your legs.

-Why don't you show me my new room?- You purr, an extraneous, mature voice exiting your throat. 'Kim''s mouth curl in fascination: -Of course.- she tweets, grabbing your hand and pulling you away.

You're guided through the entire house until you both enter the luxurious master bedroom, where she lies down on the queen-sized mattress and pulls you on top. You admire your/your sister's sly face for a moment, her brunette hair scattered on the pillow like a chocolate stain, before you lock your lips with her, igniting an effusion of intense and passionate kisses. Your developed, mature body is brushing tight against her lithe one, your hands crawl between her back and the bed, working diligently to remove the lingerie she's still wearing. Once successful, you roll over, resulting in a switch of positions.

Having her form squashing your prominent chest is, is... is something that Kim's mind hardly recognizes. These boobs that are attached to your chest might be your mom's size or even greater, but definitely not hers; and you feel the inner conflict that her subconscious is experiencing, on one side yearning for a more sensual, adult body, and on the other instinctively considering an ample bosom as a form of fatness that she abhors in every way. In any case, the fact that this sensation is impossible, wrong, yet real, is the ultimate turn-on.

This, and all the rest as well.

-Ahh~- A moan escapes your lipsticked lips as Trish slips her fingers between your legs. The warmness, the pleasure, they are the same as usual, yet also radically different.

-Ms. Martinez, you're so exquisite...- She whispers, is that what your voice sounds like from the outside? But you already heard it, since you were a young boy, you remember it perfectly. And, at the same time... you don't...

-And you are a pretty little thing, my sweetie.- You reply, making her giggle. Then, she makes a strange proposal: -Wanna spice things up?-.

You furrow your eyebrows, but before you can formulate a question the door is opened. You turn to peek, while 'Kim' smiles complacent, and you notice Danny's naked frame standing in the doorway, his conjoined hands covering his crotch.

You're repelled by this vision. Well, part of you is such: neither you've ever considered having sex with anyone else than your old body, nor Kim's taste finds him attractive, on the contrary. But knowing that right now you're his mother, that you can twist him into doing anything, like Trish did before, realizing the power that you have upon this geeky loser so that you could make him dunk the biscuit in his own mom's cherry, and of course all the arousal that is currently running through your frame, well... you really wouldn't mind "spicing things up", uh.

-Come here, baby.~- You call him, making room next to you. 'Your' son obediently complies, though his reactivity is overwhelmed by the storm of emotions that the sight of you is unleashing inside of him, as he's blushing and with wide-opened eyes. You give your lookalike a knowing glance, and you move his hands away. His prick stands before your eyes, erect and throbbing, and a feeling of dryness suddenly tickles your throat.

It truly seems... appetizing.

You encircle your manicured fingers around his shaft and with a soft stroke you pull down his foreskin. The bulbous, spongy head is already lucid with sweat and precum. You and 'Kim' press your cheeks against each other's, the same way you did with your sister and mother this morning while you were kneeling at your brother's pelvis, and you start teasing his salty glands with the tip of your tongues.

Daniel groans but doesn't react in any other way, perhaps constrained by Trish's orders and goo that are messing with his head or perhaps incapacitated by having his hot mother and a ten-score hottie licking his dick.

Regarding Trish, it's... intriguing to have her next to you: hearing her moans, her gulps and her whines, seeing the hair sliding along her shoulders and arms as she sways, all things that you have experienced from the inside just an hour ago and that your brain had naturally labeled as yours, yet that are now coming from someone else.

-You're a naughty boy, aren't you Danny?- You mock him. You wonder, does he know about the switch? Maybe; but you want to roleplay with him the same, as either you're making him believe that he's screwing his mother or you're forcing him to treat you like her while he fucks you. Not to count that he will actually bang his real mom as well, either by deceit or not. In either case a win, according to Kim's malice which is now thrilling your mind.

-You like having Mommy sucking your cock. Your little, pathetic cock. You will never satisfy a girl with it, Danny. But don't worry...- You straighten up and scoot to the level of his head, putting your feet on its sides. You're now towering upon him, your bowling pussy precisely aligned with his face.

-...Mommy is here for you. And now Mommy wants you to eat her pussy. Will you do it, Danny?-.

You hear his loud swallow, and he furiously nods. Smirking deviously, you lower yourself on him, your vagina plunging straight into his mouth. Soon, you start to moan as his jaws work inside your labia and his enthusiast tongue pickles your clit.

-Mgh... ahh...-.

Good boy. Good boy indeed.

But this was just a step on your climax of depravity. You stand up again, leaving him to stupidly bite the air, and you shift over his pelvis. You look at him sideways, with the corner of your eye.

-You made Mommy's pussy ready, my dear. Now Mommy will take your virginity.-.

'Kim''s hand clasps firmly on his dick, lining it perfectly, and you descend once again; but this time, a thick rod penetrates your flesh, igniting a carnal ecstasy that reverberates throughout your entire body.

-Ohh!!!-.

It's incredible, miraculous even, if you think that a stab in your chest, in your back, or anywhere else would provide you immense pain; yet, the same gesture on that specific corner is driving you so much insane that you almost drop the scene and lose yourself in the pleasure.

-Ms. Martinez, does it feels good if I do this?- 'Kim' asks giggling, and rubs vigorously your clit. Your answer is a high-pitched squeak, followed by interlaced sighs and cries.

You feel your knees shamble and your torso tremble as you gasp for new air to fill your lungs. Trish's body is sensitive, more than you expected, and 'Kim''s skillfulness is simply a harbinger of a more pressing desire. Therefore, as soon as she presses her tongue on your jewel, you let yourself fall backward, spreading your legs and pressing on Daniel with your back. His muffled protests tickle against your skin.

-Muuum...!-.

Your son's, your son's cock is penetrating your wet pussy so sharply, so smoothly, and thanks to 'Kim''s tongue you're tasting the pleasure that only a woman can experience in all its completeness.

"This is... t-the fucking best!!!".

A surge of glee erupts from the inside, causing you to raise your leg in the air in a powerful spasm and squeeze the thigh with your nails while the mini-orgasm flows through you.

-AHH!!!- You scream in Trish's dulcet voice. The real one moves her stolen perky eyes up to you and then retracts her face, allowing you to slide onto your side and regain some breath. Danny's dick comes out with a PLOMP, springing straight like an antenna.

Your lookalike then climbs on his waist, but instead of consummating the intercourse as you were expecting, just when her vagina seems ready to take in his eager penis, she settles instead for rubbing her along its length while rubbing and quivering sensually on top of him moaning loudly, as if to torment him, teasing his lust but denying it at the same time. Indeed, he starts thrusting into the air, unsuccessfully searching for the yearned fulfillment.

At such a sight, a subtle smirk crawls on your lips. You get on all fours and grab his cock, jerking it with your dainty fingers but wringing it away from the appetizing cunt.

-Mu-Mum!!!- He blatters in a pleading sob.

-What's it, sweetie?- You taunt him: -Do you want her pussy? Do you want to stick your big penis inside of Miss Harris's tight cunny?-.

-A-Ah!- He nods furiously, while 'Miss Harris' keeps toying with him with her obscene groans. You turn the shaft towards her, but you surprise him by engulfing the bulbous head in your mouth, avidly sucking in like you did with your former penis in your lounge.

MUNCH-SCWMP-MUNCH

You're so enthralled by the sloppy sounds that are escaping your lips that you almost jump when you suddenly hear a voice in your head: 'your' voice, to be precise.

"Glad you're enjoying this luv, but now I really need some satisfaction.".

You're momentarily baffled until you meet 'Kim''s eyes, and you understand. What a... curious trick that she forgot to mention.

You release your meal and she immediately lies on her back, spreading her legs in an M shape and looking hopefully at Danny. The young boy wastes no time as he gets on his knees and shags his penis into her.

Her face immediately contorts into a blissful rapt, and you return her the favor massaging her clitoris with your dainty fingers.

-Mmgh-ahh-you're s-so good honey!!! You're making me so proud!!!- She squeals with your voice. You look at him and see a dumb smile forming on his face. That makes total sense: after all, he's having sex with a top-score hottie normally out of his reach who, moreover, is addressing him as his mother would. But the reaction growing inside of you, well, it's not pleasant at all.

You're angry.

You don't want him to be happy, you don't want him to be released: not until you decide so. This, this pathetic geek doesn't deserve a girlfriend, a cum-dump, or anything else, and you must put this clear, as his mother, as the only woman who he's allowed to vainly wish to satisfy someday.

-No, son, you're not. Look at me.- You move your face one centimeter away from his, your eyes open wide.

-Listen to me now. I am your mother. I am the only one that matters to you. Do you hear me, Daniel? And I want you to think about me while you're fucking this slut, I want you to think how much I'm disappointed by your lameness. You are a useless, dirty scumbag, just like your father.-.

'Kim''s moans grow stronger while he stares at you like a monster, with a terrified expression on his face which yet is leaking of devious excitement. Yes, you are a goddess to him right now, a terrible yet splendid deity who he's compelled to venerate, regardless of your insults, or maybe because of them.

You kiss him. Not because you're not disgusted by it, not at all, but to assert your control over him, your property on his breath. As you do so, 'Kim' dutifully licks your hardened nipple, all three of you having your eyes closed to fully embrace those wonderful sensations.

Your pussy is itching. She's thirsty again. You push off Danny all of the sudden and lay next to 'Kim', grabbing her buttocks as she does the same with your cheeks and making out intensely with her. Your swaying ass is a clear invite to your presumed son, which he instantly gets and accepts. Another plunge, another climax.

Awesome.

Oh, if you think about it, about what you're becoming and what you're obtaining this easily in such a short time! And this, this can be your new normality from now on, with no one that can remotely do anything to stop you!

Meanwhile, Daniel's grunts are more and more audible and his penis is pulsating unmistakably between your fleshy walls. But the idea of him cumming inside of you is still just... eugh.

He complies when you order him to step away, using an assertive yet aroused tone. Without interrupting your kissing any further, you roll on your back and squeeze your breasts; two massive luscious pillows which squashily fold under your manicured digits for a few seconds before pushing them back, in an impossible equilibrium between softness and firmness. They're so alluring that you doubt Daniel needs your goo to find them attractive, but right now, with all the incestuous thoughts you've forcefully implanted inside of him, they must be simply irresistible.

And so, he sticks his cock in, letting your kneading hands milk.

"Oh god... this twerp is going to blow his load onto his mother's tits~~~ he'll never recover from this!!!" You celebrate inwardly. He just needs a final push.

Trish moves away from your mouth, resuming to lick his fungus tip with the shamelessness of the heated bitch she truly is. She looks like you, and she's so sexy. But she also gives you the opportunity to score the final hit.

-Yeah sweetie, give me everything, fill mommy's boobs with your filthy sperm, you m-ahh!- You finally exclaim as tons of warm, sticky, white seeds are unceremoniously released upon your thorax. Danny gasps cyanotic, while 'Kim' uses her stolen tongue to taste it from your sensitive skin.

You smile to no one in particular, just staring at the roof, while the chilly air of the room makes you sense every droplet running down your bosom. The weight of your breasts is pressing on your chest; Danny's deflating penis is settling down on your tummy; and your long, disheveled hair is tickling your ears and your shoulders.

It just feels... perfect. Simply perfect.