Should I tell someone that I have been sexually abused?

I'm really sorry to hear this is happening to you and understand your reluctance in telling anyone because of him being a family friend. Yes, you should absolutely tell someone as any form of domestic abuse, regardless of who they are, should not be tolerated.I honestly suggest getting in touch with organisations like Victim Support or similar, (I don't know exactly where you're from so I can only offer organisations I know of where I am, in the UK), and they would definitely give you the best advice for the situation you're in.Remember, even though you may feel like it, you are not alone and you made the first steps in asking for help here. You're more than welcome to contact me via PM if you need to and I will do my best to help out.

What the literal fuck gives them the right to do that to you? You not only should report it but you should feel a moral obligation to do so. If you keep taking that shit you are in effect giving him ownership of you and when they get tired of you they may move on to someone else. Don't take that shit honey, fight back there is no logical justification that you can use that makes this shit alright. He is not a family friend he is a sneaky dangerous predator,please, please please don't let this abuse continue! If nothing else arm yourself with something and fuck him up the next time he approaches you.

I'm sorry to hear about that but I think that you should really tell someone that you trust that he's doing these things to you. This also happened to me and he was a family friend also. I told the cops and other people I trusted and I'm currently getting helped because he messed me up really bad mentally. So I would say please tell somebody about this no matter who it is, It will make you feel better and you don't have to deal with the burden of him in your house doing those things to you