<human>: Summarize the given text in a few sentences.

Hi everybody, so I've been with my girlfriend for 6 months now and everything has been fine up until this week. My Girlfriend (let's call her Kim) is due to stay over at my house for the first time next week and we were both looking forward to it until her mother stepped in.

She told kim that she wasn't keen on the idea of her spending the night and that she wasn't allowed to share the same bed as me. Kim has already explained to her mother that we won't be having sex (Kim told me she wanted to wait until marriage, which i'm fine with) but her mother doesn't trust her.

This isn't the first time her Mother has stopped her from doing what she wants. We were planning on taking a trip away for the weekend, but her mother told her she wasn't allowed to go unless we got a room with 2 beds. I've asked Kim to talk to her mother about it but when she does, it ends up with kim in tears because her mother doesn't really want to know. I've tried to convince Kim that she's a woman now and that her mother doesn't need to tell her what she can and can't do but she's worried because her mother is her only family and she wants to keep her happy.

Kim and I have both agreed that i'm going to go and try speak to her mother about this, I just don't know what I'm going to say. Any advice would be greatly appreciated. Thanks!
<bot>: Girlfriend's mother won't let her daughter grow up, im going to talk to her tomorrow about it and don't know what to say