By Connie Bowker Hit reality show 16 and Pregnant \- following pregnant teenagers as they navigate adolescence while simultaneously approaching parenthood – first hit our screens 15 years ago. Last week, fans were rocked by the news that former MTV star Sean Garriger died in a tragic ATV accident at just 20 years old, leaving behind two kids that he shares with Selena Gutierrez. Sean and Selena starred in series 6 of the reality show and quickly became fan favourites as they clumsily navigated pregnant teenage life. In March 2021, Selena shared a life update with MTV opening up about her life …