Oh, doubtlessly. You, her, and Sypha in a room is a worst case scenario for such a concept.

[He can't even imagine what would come of that, besides chaos and blows to his ego. But his mother would enjoy Jaskier for the wit, if not shut the flirting down immediately because well.

Jaskier doesn't need to know exactly how into each other his parents were.]

So you don't know if they're real either. You were drunk.