My little sister is sexually active, should I tell our mom?

My little sister is 15

I looked on her phone & found out some guy was messaging her sexually
i scrolled up and saw that he sends her dick pics
I didn't see any pictures sent from her though

I thought maybe he was harassing her but she was being sexual back with him
this is hard to talk about, but she was saying she wanted to do things to him...

he was saying she wanted to do things to her

very nasty things they talked about doing, should i tell our mom? I don’t think I’d be able to handle it the right way
she’s only 15..

im not sure how old the boy was, he could be some old man

there’s no way I can let this go though
it’s either me or mom

if I have a talk with her moms probably gonna get involved anyway

i know how to work social media better than my mom does so if I go on her phone, I’m going to make sure that man can’t contact her again, our mom might not know how to do that..
you take care of it
Let your mom handle it
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My little sister is sexually active, should I tell our mom?
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