So this past weekend, I hung out w/ a friend (HB8) that came up to visit her cousin for New Years. I've known this girl for about 6 mos, but mostly speak to her on the phone and through email because of the distance.
The first night, she invited me to go over her cousin's to watch a movie, which I did. After the movie, I invited her to stay over my place (unfortunately, a very AFC-like direct invitation) and she declined and asked me to stay there instead, which I declined since I knew nothing would happen. The next night, we all went out to a bar where we made out all night and she grinded me like crazy on the dance floor. When we got back to her cousin's, I reworded my invitation by saying "If you wanna give your cousin and her BF privacy, you're welcome to stay at my place". But she declined again. The last night we went out, it was kinda dry and less fun than the previous nights and I didn't even mention going back to my place.
My question is, what could I have done different to convince her to stay over and what should I do the next time I see her? I'm a bit confused since we had such a great time. Last time she came up, she stayed over my place one night and I didn't try anything. We messed around but it didn't go further, which I was ok with at the time. Because of that, I know she trusts me enough to stay over, but I'm thinking she doesn't trust herself and has somebody else back home (which doesn't bother me too much) that kept her from going too far w/ me.

it is lightly that she does trust herself as u said, more accurately this is called ASD (anti slut defence). ASD prevents good girls from feelin like sluts !! when u ask her over she knows sex is probs gonna happen now that she has spent some time showing you affection (the main difference between now and when she stayed over before) so she declines because if she accepts she is participating in her own seduction and chicks hate that. the way past ASD is for her think "it just hapened" (plausable deniability) so the way puas do this often is by picking something at ur house like a film she JUS HAS TO SEE ! or you spiderman stamp collection it reli doesnt matter, and have her come over just for that, dont ask her to stay over just get her over in the evening and escalate like a man !! do a search for some last min resistance blasting stuff tho bro, ul need it !! hope that helped