Jennifer Widerstrom is the new and cute female trainer on The Biggest Loser. She has a great smile. She also has a cleavage that it's hard not to stare at when she's wearing the right attire to show it off.
She's currently on the cover of Health magazine. See below.
But she is really more impressive on the cover of Muscle and Fitness - Hers. Truly impressive. (Sorry, this is the only size of this pic available).