"Teen Mom 2" star Kailyn Lowry is getting ready to make some big changes in her life and letting fans in on the details. The MTV reality star revealed the news this week during an Instagram Q&A session where she was fielding queries from fans about things going on in her life. One of the questions from a fan asked the "Teen Mom" star to reveal her bra size, but the fan probably didn't expect the reality star to reveal a little extra information.