Yeah. There would be no evidence for blackmailing. Even if they ever get down to doing the down and dirty. As much as the mere thought of doing the right thing made Meg want to vomit a little in her mouth, she did actually give a damn about Cas, and she wouldn't let some dick embarrass him. That was her job.

"Consider it done. Course, if we're making a deal, we need to seal it with a kiss." Even though she was not a crossroads demon, there was no deal, and even if there was it wouldn't be binding due to the aforementioned fact that she was not a crossroads demon.