Nebula | Quill
They'd find something to keep things interesting, of that much Nebula was certain - she didn't have to cause explosions for that. And well with her sister there whether or not there were explosions mattered very little to her. They were a family, and she supposed that meant Quill too as long as he didn't hurt her sister as she got to know him again.
She turned toward him after a moment when he asked if it was okay, and she considered it. There was no doubt that this was a difficult situation for him, the same as it had been for her to see her sister again, to be the one now who knew what they could become together and waiting for her sister to catch up - and she did not share the same kind of relationship that Gamora had with Quill, it was different, harder perhaps now to deal with.
"She is still who she always was," She said first, Gamora had never let herself be changed hugely by Thanos, she survived him - when she'd betrayed their father the first time it was who she had always been. "She will not be able to get to know you the same way she did in the past, but she is who she has always been. She loved you once." Nebula knew that - she knew that it was something that her sister had felt for him. "She could again, if she is not pushed. If you are still the same person you have always been."