When a reality TV star "balances" a champagne glass on her bottom, scores of people must feel compelled to replicate that culinary feat. That's (probably) one of the reasons that Runtastic is announcing the Butt Trainer app that'll, apparently, help you improve the size of your backside. Like the company's Six Pack app, a 3D avatar will guide you through over 50 instructional videos and ready made plans like "7-Minute Workout" and "Junk in the Trunk." You'll also be able to share your progress - you know, to enlarge your rear end - on social media, as well as pair your heart-rate monitor with the app. Sorry, you know what? I just can't do this anymore.
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