So for a little back story im a older brother (28) with 4 younger sisters and all have my close friends have watched them grow up and have been supportive and kind to them over the years, but recently my buddy 30 got kicked out so ofc I make sure he's not on the street or B&B and let him stay with me for 2 months. As she was coming up to her 17th birthday I noticed they were being flirty (cringe but yh know) and I kind of shrugged it off but had a weird feeling one day and noticed a fountain of lies from my sister about where she has been and where she is.

I find out they have had sex in the local dogging spot and freaked out, soon as she got home I checked her deleted messages and the was nearly 1200 messages containing alot of baby ish talk like she was a 9 year old or something and wanting to meet away from the family and at the time she was 16 so to make it legal they waiting till 17, hiding it from me and keeping it a secret so I just had enough and kicked him straight out and took her phone till the next day.

I sat her down and explained in the morning that while technically legal its very much wrong and my friend knew exactly what he was doing and its not her fault liking him as he should not of even acted that way towards you and that it was not a long term solution as she couldn't go out for drinks, or meet with family or be able to show off eachother on social media or in the town and she has her whole life ahead of her to have fun be silly and just focus on herself but then she told me he was in fact trying to convince her to move in his new flat once he moves out of my bedroom (yes he was sleeping in my bed and I was on the sofa) I then spent the next week getting support from all my other friends and explained what grooming was and trying to move her past all this.

but as she was starting college today for inductions into her new class I notice she hasn't come home so I ring her friend at college to see whats going on and she tells me that she has infant met him in his car after college and that she wants to be with him... I am sat here shaking and not a clue what to do right now and they both ain't answering their phones and I can't even call the police.

edit: she still isn't home so asked around and he has apparently taken her to his new flat but 0 response for me from both of them, I guess its a wrap he's got his claws in.

EDIT 2: She still has not came home nor got back to anyone and AH has switched phone off from all the harassment from family so I contacted college safeguarding at 9am and also the police and given them everything to find his new flat and bring her home.

thanks for all the messages and kind words (and even the violent ones) we appreciate it!