After being asked for advice regarding being a "bonus mom" on Instagram, mom of two, Brittany Aldean, recently shared that jumping into the role of stepmom isn't always easy. Brittany's husband, country singer Jason Aldean, has two daughters - 16-year-old Keeley and 11-year-old Kendyl - from a previous marriage. "Whewwww! Buckle that seat belt, girl!" wrote the 31-year-old mom in an Instagram story. "It's tough but you have the opportunity to REALLY impact their lives." She explained that being a good role model for your stepchildren is also of the utmost importance. "ROCK IT and be a strong foundation for them!" she said, adding a praise hands emoji for good measure. Hey, we'll take that advice!