-You're a real motherfucker, bro!-

You're taken aback. For a second, your mind doesn't process, why is your mother calling you like...

Then, it hits you. Your 'mom' chuckles, collecting a trail of cum from her waist and slyly licking her lips.

-Dang, big bro, do you have hyperspermia? Holy shit, look at this mess.-.

-W-What...- You stutter: -H-How? You, you were...-.

Jessica Harris's visage twists into a mocking grin: -Heh, you should see your face! You thought I was still in Kim, right?-.

-S-She smirked!- You protest, showing the evidence that it's impossible for the person you're talking to to be Tina possessing Mom, even if, well, even if she is: -When your body talked about shopping... and after lunch I kept my eyes on Kim, and she never...-.

-Yeah, well- Tina scratches her stolen nose: -you see, a couple of evenings ago Kim told me that I needed a closet overhaul. She wanted to teach me, quote, how to act like a slut to toy and crush any boy's heart; I guess it's her idea of sisterly bonding time. Anyway, I told her I'd use the shopping excuse when I felt ready, so right now, she's probably showing my body how to give blue balls to some poor sap. So, don't tell Mom... though currently, there's no risk, huh?- she then takes a grope of her tits. The same tits that you have just kissed and played with while you were convinced that...

-T-Then you weren't in Kim during lunch? So where...-.

She gives you a subtle smile. Oh, heck.

-You were in my body!-.

-Yup. Guilty as charged.- Your mother's voice replies, morphed in a girlish tease.

-I wasn't really ****!- You continue: -You've just undressed me, and when I transferred back, you...-.

Tina opens her mouth to reply, then pauses for some seconds, then speaks: -Actually, I did **** your body; and then I undressed you etcetera etcetera. To be honest, I didn't know how it would have ended, so I spiked Mom's glass too... brrrr, and her body still feels it!-.

Oh my God. Oh my God. You're having a stroke. Your mom was possessed the right moment you dispossessed her. It was Tina all along!

-Come on, Tom, did you really think that Mom would have sex with you? 'Oh, sweetie, only for this time!', 'Oh honeypot you're so better than your father!', pff! Hell, that was my best performance ev- Her words are abruptly cut off as you spring upstairs and lock yourself in your room.

-...fuck.-.

You've buried your face under your pillow, hands pressing it tight. How could you fall for it so easily? The absurdity of believing your mom would engage in such an act with you hits hard. Your mother, having sex with you! How couldn't you suspect even for a second that there was Tina behind the wheel? Sure, she clearly studied it deeply, but come on!

Perhaps you wanted to fall for it. You were so **** to have approval for your incestuous feelings that every confirmation, even the most ridiculous one, was like Gospel truth. Your mom tells you to fuck her? Say no more. Fuck, you're an idiot, a loser, such a miserable human being! Even now, with all the humiliation that is hovering above you, you can't help but think about the body you just savored with all your senses, and you feel the arousal surging back inside of you. You'd like to blame the **** for that, but it's not the case. There is a part of you that doesn't simply care about the truth; nay, that would have preferred for Tina to keep on her facade for the time being, if that meant to shag your mother again.

KNOCK KNOCK

-Tom?- Your mother's voice comes from behind the door. Surely, Tina is still in there. You heard her showering in Mom's room, at least she had the decency to clean her up.

-May I enter?-.

You sigh.

-Yeah.-.

The door opens, and you lift your head. Tina has attired your mother in an orange t-shirt and a lacy white mini-skirt. She looks hot, but at least is a step down from the dress you've chosen.

-Ehrm, how are you?-.

-Fine. Never felt better. Thank you for your interest.- You crumble back on your pillow.

-...I mean, if there's something you want to talk about...- She starts after a tense silence; you, however, cut her short: -Please, stop playing Mom! It's even worse if you... still look like her.-.

-Oh. Oh, sure, give me a second.- You hear the sound as if flesh is settling back. Raising again your gaze, you see your mother's figure becoming shorter, her hair lengthening, turning dark except towards the tips, where it remains blonde. Her features and body change, becoming younger, and even her clothes transform into denim dungarees and, underneath, a pink tank top.

Where there was your mother, now your sister Tina is standing in one of her favorite outfits.

-Better?- She asks. You nod, quite surprised actually. Yesterday evening she told you that she, and thus you, could shapeshift, but you've never seen the process yet, and alas you didn't know it was possible inside someone else's body as well.

-So, uhm, I guess I've upset you.- She says hesitantly. Of course, she has no idea what to say, because she still doesn't understand why you're angry at her.

-It's just a game to you, uh?- You give vent to your frustration: -You take over bodies, push me around, make me have sex with your boyfriend, as if it's nothing!-.

-Well... but...-.

-And then!- You swallow a heavy lump: -Then you seduce me with Mom's body. You pretend to reciprocate my feelings for her, even if you know that I'm struggling with all of this, you trick me and then you crush my heart like this!- you end up with tears forming in your eyes.

For the first time since all of this has begun, you see your sister's face staining with shame. It hurts you how much you would like to console her and kiss her even now.

-I'm sorry.- She eventually says: -I didn't realize how serious it was for you.-.

-You didn't?- You press. Her lips quiver: -Ok, I did, but I didn't think you would have reacted this badly. It's just... Tom, I'm like this for a couple of months, and still I cannot believe it! My life was... so plain before, and when I found out that you were like me, I... I guess I let myself get carried away.-.

She genuinely seems displeased, you have to admit it. On the other side, you've discovered that she's a good actress.

-It's not just that, Tina.- You shift your position to sit on the mattress: -You're making me worried. Suddenly, you hijack people around, toy with her lives, and you even have a boyfriend older than you and me.-.

-Are you jealous?- She smirks, then she notices your expression and lowers her face: -Sorry.-.

-What I'm trying to say is...- You struggle to find the words: -I don't know who the person in front of me is anymore.-.

Silence falls between you once more. However, eventually, Tina crosses her arms and purses her lips.

-Yeah, well, it's not like you can preach to me. You want to bang your mother, our sister, and me too! You know what I'm thinking? Maybe you're just annoyed that I'm not the barbie doll that you pictured, but a real human being!-.

Her words hit a nerve, deeply affecting you: -Tina, that's not true!-.

Tina makes a defiant "mh" and diverts her face away. This discussion is taking a bad turn.