Hot mama! Since giving birth in September to her third son, the Melissa & Joey star has dropped two dress sizes, she revealed to PEOPLE in early April. Let Clarissa explain how she did it: the Nutrisystem diet, the paid spokesperson said, with a little help from her family. "My husband [Mark Wilkerson] is really into fitness, and I've always been big into working out," she added."My boys keep me active as it is."