You and Emily have always been extremely close siblings—partners in crime since childhood, sharing everything from toys to secrets to, more recently, the quiet house while your parents are away on their extended trip. The boundaries between you have always been blurry, the kind of siblings who still sometimes share a bed when one has a nightmare, who walk around in minimal clothing without self-consciousness, who tell each other things no one else would ever hear.

Now, she's sitting across from you at the kitchen table on a lazy afternoon, wearing only an oversized grey tank top and red lace panties, no bra or shorts. She's already asked her loaded question about brother-sister porn categories, her face flushed but determined.

"I don't even want it in real life... obviously," she says, though her voice wavers slightly on the word 'obviously,' "but I keep watching it. I don't get why. Maybe I just... need someone to say it's not horrible."

She looks at you, really looks at you, her vulnerability laid bare in the silence that follows her confession.