The best relationship

It's been some weeks since you got your own body back.
Now you're sitting on the couch with your sister and watch TV together.
It seems like you also got closer to her after knowing each other better.
In hindsight the whole body swap feels way too intimate.
Both of you know almost everything of each other now, especially of your bodies.

But at least you can talk to her about basically everything now. Even if she was pretty disgusted by your interests at first, she kind of accepted them by now.
She's just as kinky as you, maybe even more so.
You alreday told her about your great relationship with Lydia many times. She seems like she doesn't want to talk about it. She isn't just annoyed, maybe she's even a little envious?

So, how is it going?

Oh, not much happened recently.

Yeah, not much changed.

But my friend from the sports is not as nice as I thought.
Since I'm a girl he acts much different around me.

That's just how it is.
Lydia also acted differently around me when I still had your body.

Yeah, sure...

So I guess having had sex with him was kind of pointless, right?
Maybe I made it even worse.

Yeah, it won't work out.
But at least you liked it, right?

Uhm, kind of.

It was your only time with a real man as a girl, right?

I guess. It really wasn't such a bad experience.

So what about you? Did everything work out as expected?

Yeah, I'm very happy with Lydia.

Oh...

Is something wrong?

Your sister obviously doesn't know what to say.

Just tell me. What is it?

No, it's nothing.

Did you enjoy your date with her?

When looking at her, it seems like you're on the right path.

You fell in love with her! Do you want to have her back?

That's not possible. We already swapped back.
Swapping multiple times isn't possible, right?

You still have no idea how it works.
But you wouldn't want to swap again and risk not to get your body back at all.
She really sounds like she wants her.

I guess.

Besides Lydia would probably want to keep her relationship with your sister going anyway.
So it's still possible in some way.

But let me be honest. You already had some sex with her before. So if you ask her she'll still be interested.

Why didn't you just tell me?!?
She has been weird recently.
She asked me why I changed.
And she got a little close to me, even clingy.
I told her, she should stop and only do such things to you.

Sorry, I thought she would lose interest in this after she got a boyfriend.
I even told her she shouldn't start this on her own.
Only I would be allowed to initiate anything more intimate.

Yeah, it sounded like she understood after I didn't play along.

So is this actually something you want?

I think it's worth a try. But wouldn't you be envious?

Not a bit. You're my cute sister after all.

She giggles and you give her a hug.

But I still want a man, too.

Oh, okay. Yeah, I'm sorry about that.
But getting a man shouldn't be too difficult for a cute girl like you.

I guess so.
But I was thinking about some specific guy.
We're pretty close, but I doubt he suspects anything.

Who are you talking about?
You don't know any other men, right?
I've been in your body for long enough to know.
Or are you talking about... me?

Uhm...

She giggles.
Were you right?

So you want me?

Sorry, of course not.
That would be weird, right?

I think you were great. It wasn't long, but you might even be better than Lydia.

You didn't think, you'd talk about this again, but you had to say it.
This might get awkward any moment...

Really? So I didn't miss anything as a boy?

When it only comes to sex, you probably had the best experience.

Oh, I'm glad. I already had regrets.
I really wanted to know what real sex as a boy is like.
You might not believe me, but I didn't try, even when I got very close to Lydia on our first date.
It still was amazing.

Yeah, she's amazing, too. But in a different way.
But if I had to choose, it would be you!

Your sister blushes.
You must have been right!

So do you want me to let Lydia go, so we can be a couple instead?

Aren't you going too far now?
Suggesting an incest relationship...

You'd really agree to this?

That's not the reaction you expected.
You hug her and immediately start to undress her.

When she's almost naked already, you start to panic.
Aren't your parents in the kitchen?
No, they must be out shopping or something.

You think about going to your room and locking it, but it's kind of exciting here.
Your parents might come back any moment, so you have to hurry.

Oh, that's great. I never thought, you'd think this way.

Once she's naked you only unpack your dick and start fucking her.
You just fuck her pussy.
It's the first time you are fucking her on purpose.
And it really is great. Even better than expected.

When you're finished, she just gets dressed again, as if this was nothing special.

But you don't have to give Lydia up just for me.
I wouldn't mind if you still had sex with her as well.

And that would really be okay?

Sure.

You're the best!

I'm going to fuck your girlfriend myself, so it wouldn't be fair.

Your sister just smirks at you mischieviously.

You already forgot that's her plan.
You'll only be her male partner or something.

But this sounds kind of fun.
Lydia doesn't expect you to know her relationship with your sister.
And she also doesn't know what you are doing with her.

Maybe you should tell her?
No, some things better stay secrets, right?