The 22-year-old took to social media to share her thoughts on Aunt Flo's arrival with a series of happy snaps of herself partying on a boat accompanied by a suitably sarcastic caption.
"I woke up with my period and this is how excited I am 😐," she wrote.
The actor and singer has long been outspoken about taboo topics, most recently her attitude towards polyamory and pansexuality.
"A lot of my partners start out like 'what?,'” Thorne told Cosmo. “And I’m like, 'Bro, this is who I am.' So, you’re either down or you’re not down and I totally understand if you’re not down. At this point in my life, I want to find what makes me the happiest, and that is the mission I am on. If you don’t want to be on that mission with me, then okay, I totally understand. If it will hurt you too much, then we’re not right for each other at this moment in my life because this is what I’m looking for."
We're on board with Bella's honesty across the board 🙌