I've been trying to romance piper and have maxed out her affection. I've gotten the perk from her but I can't pass the persuasion check, it fails every time.

I've had the option come up multiple times now, still fails. I also have a charisma of ten but still fails. On my friends play through he passed the persuasion check with with Charisma of three to four.

I'm starting to wonder if it's a bug. Anyone else having this problem?

got ladykiller? passed mine with Cait on the second try, had 6 charisma and 3 ladykiller

No, I don't. Next time I level up ill give it a try. Might as well at this point.

Well on second thought that is a male only perk I think so that might not work =x