The plainest ones.

You pick the plainest pair you can find and slide them over your slim, smooth legs…

And almost have a heart attack.

The panties are silk, and the feel of them on your new, sensitive skin, sliding up your calves, your shapely thighs… it’s almost too much to bear.

That's when you see yourself for the first time, reflected in the full length mirror in Helen's wardrobe. You'd resisted buying it for her, you remember, but she'd insisted...

Girls need to know how they look, Dad.

Now... you're a girl.

And you look... absolutely stunning.

You turn away quickly but the image is burned into your brain. The face of a goddess. A body women would kill for, and men...

A moan of despair escapes your lips, and you flinch at how... sexual it sounds. You bite your lip, trying not to make any more shameful noises. You’ll never live it down if Nicholas --

A knock on the door makes you jump and spin around, heart pounding.

“Wh-what?!”

“Don’t take too long,” you hear Nicholas’s voice through the wood. “You may already be starting to feel it.”

“Feel what?”