Lucy’s house sort of became a gathering place for the dragon slayers. She wasn’t sure when it happened, or why, but she got used to coming home to various people sitting in her home.
The first time Sting and Rogue appeared she’d summoned Loke and prepared to fight, but they’d just asked if she had any tea.
When she woke up to Laxus digging through her kitchen she just stared at him and rolled over, pretending she saw nothing.
Wendy was the only one who actually knocked before entering, although sometimes Natsu would drag her in with him. She always made sure to apologize though.
The weirdest had to be Gajeel. The first time he showed up he just stood against her wall and stared at her until she finally asked what he wanted. It turned out he just wanted to borrow a book that Levy had been talking non-stop about. It was still weird though …
Lucy finally asked Natsu about it one night, hoping he would have some sort of answer, but he’d just shrugged and hugged her closer.
"You’re comfortable," was all he said before falling asleep.
After that Lucy made sure she always had some snacks for whichever dragon slayer decided to visit next.