Situation with two sisters (w/pics)

[andnow]

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take a pic of older sister holding a sign that says "andnow" otherwise you're fos.

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I know pics are hot. That's why this is a dilemma.

The reason she took that pic hiding her face, was because she was worried it would somehow get on the internet.

If I asked her to take a pic holding a sign that says "andnow" it would be too obvious that I'm posting something on the internet.

She said basically she'd do anything but show her face in the pic, when I asked her to take one for me, because she doesn't want pics with her half naked to be identified with her.

I probably could get her to wear a specific type of bra and panties, like red or blue. Or get her to wear specific type of clothes, or take the pic doing certain things like: lying on her bed, leaning against a wall, with a chair, or with handcuffs on. Something like that I could probably get her to take. Any suggestions that won't be too suspicious that I'm posting on internet, I'll get her to do it. So suggestions?