A girl taken by fae in place of her sister because her ancestor took fae power and disappeared. Now she has 7 years in fae realm to pay it back. Seelie and unseelie fae might be a reverse harem. HELP!

I read a book not long ago and I can’t remember the name. A girl and her sister visit the place I think their mother grew up or something. It starts with them at a funeral I believe and the girl is looking up at some weird looking birds. When they get home they make preparations and have a people over that evening and her sister disappears. She finds her talking to some men by the forest border (two pretty men). The sister flirts with them while the girl sits quietly since she’s not good with men or socializing. They do try to talk to her but soon she leaves I think. She starts having dreams about scary human like creatures where she is both frightened and for some reason turned on. They hang out a next night at a bar after she finds one of those weird birds outside her house hurt and she leaves it in a box in the house. When she tells the guys this they act weird and one suddenly has to leave. Later in the night the other guy takes them home. Anyways the book progresses, turns out their mother or grandmother had made a deal with the fae and over time deals that aren’t paid back grow more powerful. Apparently that power is passed down the generations so now the sisters have it and one of them must pay the fae back. To protect her sister she makes a deal to serve them for 7 years to pay them back. She’s taken to one guy’s kingdom before the other unseelie fae prince that he’d been hanging out with can get his hands on her. Once they make it to the fae realm it seems a queen is in charge that is very wicked and there are other girls having different amounts of power there as well. There’s a ceremony they’re all preparing for where they need one of the princes to work with them while competing. Thorns are placed on her as a way of seeing how much power she possesses. She’s given a dress that keeps her safe from ghost like fae or something. I think it was going to be reverse harem but I don’t know. PLEASE HELP ME