Instead of there being 4 teen mom's, what if there were 5? Meet Brielle Lancer. You might recognize her from 16 and pregnant when she had her twin boys Alex and Aiden with her previous boyfriend that just up and left right before they were born. Now they're back for another season of Teen Mom OG, and this time her actor and model boyfriend of 2 years, Nick Bateman, is along for the ride. Follow Brielle, Nick and her boys as she deals with drama, marriage proposals...and more drama.