The Toned Up star's proposal involved her fiance jumping into a lake.
See what went down when Brian proposed to Katrina.
Enjoy exclusive photos from Katrina and Brian's engagement celebration -- a night of girl talk, tears of joy, and lots of wine!
Get fit while you watch with this workout from Karena and Katrina!
Check out sexy shots from the girls' trip to Hawaii for their DVD shoot.
The fitness guru opens up about her history of addiction.