I've name changed for this to protect DD, but I'm a long time MNer, Pom bears, penis beaker, naice ham etc
Ive caught DD out sharing what to us are pretty racy photos, not the first time & worse than previous, especially given her age (15) to DD it's no big deal & no worse than a bikini shot. She's so good in other ways that I'm reeling a bit tbh & feel I've failed as a parent & also really not getting where she is coming from as she sees us as old out of touch fuddy duddies & seems to see it as empowering, yet when asked "do you think strange boys playing with themselves over your photos is flattering, I got a very horrified "or course it's not"
she's cutting her head off in the images, but they are clearly identifying as her, racy cleavage & ass in lacey lingerie shots. Shots aren't fully revealing, but are clearly set up to tease with things gripped or dripped in her cleavage etc
I had a feeling something was off & when noseying in her social media accounts, found a chat between her & a Male same age friend, where he has sent her photos from his "wank bank"
she's shocked that one photo is a headless DD & Oh my god, where did you get that. NN used I don't know, but the gist of it is that DD has sent it to someone who has shared it on.
She's only had one boyfriend & that ended last summer when he moved abroad, another lad has strung her along for a few months with dates that didn't materialise into boyfriend girlfriend, so she got fed up & ended it a few months back. She's actually really fussy & doesn't like many lads, which makes this even weirder to understand. She gets fed up that she gets a lot of hassle from what she calls "fuck boys" messages asking for photos & trying to chat her up in school etc & she won't have any of it. She really isn't likely to have been pressurised into doing this as she's very strong minded. Reality is, it looks very much like she knows what she is doing & is being a little tease, 
Snapchat will go for sure after this as she clearly can't be trusted, but WTAF, she's a very beautiful young woman with a stunning figure, she's mature, very bright, she's feisty as hell. She doesn't need to do this to get boys attention, she doesn't even want their attention & is shy when she does like someone, it's seems to be more of a pee take power game, but one I can see her loosing.
Big chats when she gets in this evening, but any advice bar reading her the right act, reminding her of the law & delete Snapchat for good. I need to get through to her, as I clearly haven't in the past