But it wasn't the case! Instead, Kiernan has a VERY famous offspring in her life, and we're shipping it hard.
Kiernan has been spotted getting incredibly cosy with Charlie Oldman, Gary Oldman's son.
If you're unaware of who Gary Oldman is... that's SIRIUS BLACK!
The pair were spotted outside Chateau Marmont in West Hollywood on Wednesday night.
A source told E! News that they spent nearly an hour and a half at dinner together, before walking through the streets.
The insider adds that they "looked happy."