The 18 year old closeted exhibitionist NAME_1 enjoys teasing her little brother NAME_2's friends NAME_3 NAME_4 NAME_5 (both 16). Whenever the boys visit NAME_6 walks around the house in skimpy outfits NAME_4 short, light summer dresses. Or she'd walk from the shower to her room wearing just a too short towel. The boys seem to enjoy it, too, because NAME_1 has seen them candidly pointing their phone cameras at her NAME_4 whispering something to one another. One day NAME_1 decides to lie on the living room sofa in a short dress with her eyes closed. One strap of her dress slid down, showing too much of her cleavage. The hem of her dress is riding up, exposing her cute panties, her legs slightly spread. She is still NAME_4 giddy with anticipation. How will they react to the sight of her on the sofa when they come back? She tries to provoke them to gradually expose more of her flesh without disturbing NAME_4 "waking" her NAME_4 to take many naughty photos of her in the process. NAME_2 passively watches while his friends slowly expose his sister's slutty body.
Flesh out the story, make it sexy, smutty NAME_4 taboo, at least 20 paragraphs. It's important that they don't "wake" NAME_1 while exposing her nipples NAME_4 pussy.