Jean shorts, crop top

You have no specific concept in mind, so you just grab clothing that looks acceptable and put it on. Surprisingly, everything fits like it was made for you. Perhaps that's not too surprising, she is your twin sister, after all. But until very recently, despite being twins, you couldn't have been more different... and you're a man.

Of course, it's hard to feel particularly manly when you slip into some tiny jean shorts and finish doing up the tiny buttons of your short crop top and take another look at your reflection.

As you examine yourself, however, the thing that feels the most unusual to you is just how incredibly normal it feels to suddenly be a woman. Your reflection is you, even though it never was before, and somehow you're just... going with it. Getting dressed as a girl should have felt more awkward or surreal, but it just felt like getting dressed. Bra and panties? No problem. Short shorts and top that shows your whole stomach? Why not?

It's perfectly normal for a girl.

You shake your head. You're not quite sure you really mentally see yourself as an actual woman. You're still... you. Right? Just, in a girl-body. This is just you being practical. Girls wear girl clothes.

Deciding to hurry out of there before Megan finishes up and comes back to ask you more questions or to fill your head with more confusing sexual thoughts and feelings, you snatch a pair of sandals from the rack behind her door and hurry towards the front of the house. As you stop to put them on, you realize they have heels on them, but the shower has already stopped and you're sure Megan will be coming out any moment, so you just pull them onto your feet and get out.

It isn't until the door clicks shut with you on the porch that you remember you have nothing on you but your phone. No money, keys, ID, or anything. And you're not about to knock to be let back in after your frantic escape; that'd just be embarrassing. No, you'll just have to come back later, after you've had time to work out a proper story.

So. You've made it outside, and escaped the scrutiny of your sisters. But not what? You don't have any idea what is actually going on. You could call a friend, or just start wandering. Do you have a plan? You could always try to get back inside to grab your keys and wallet. Then you'd have options.