Kristen Bell co-stars as her real-life husband's wife in the CHIPS remake, and she told Seth Meyers recently that she wanted to look like she had "an aggressive boob job" for the role. After all, it does fit with the character, and, I mean, boobs are great regardless. Instead of opting for prosthetics - or an extremely padded push-up bra - as an actress might normally, have to, though, she made good of a unique situation. She was breastfeeding at the time, and so on the day of her low-cut swimsuit shoot, she just opted not to breastfeed.
For anyone with boobs (either yours or a significant other's) that have fed humans at some point, opting out of breastfeeding or pumping makes your boobs swell up like balloons. And I really mean up - they plump up just like a silicone set would. It made Kristen's boobs huge and perky. As a reminder, here Bell's boobs pre-children:
And here's what they look like when they're literally filled with milk.
Breastfeeding is a magical phenomenon, isn't it?