Why, both sound like perfectly good fun times to me.

What makes you think that the pictures were shared without Holly's consent?
"Corrupting" is such bullshit concept i don't think i can roll my eyes hard enough at it.
Ivy is just teaching Holly how to have fun, in a way that Ivy herself views as fun and supposedly partakes regularly. It's not like Holly is 12 and can't choose not to hang out with Ivy, if she didn't like what Ivy lets her experience. I hardly think this makes Ivy in any way an asshole, or a bad influence, unless we're going to claim that being sexually open and having fun is something
bad that no girl should have her hand in? It can be a pretty tall claim when in the meantime player-driven Lena potentially sucks all the dicks and fucks everything that moves.