Megan Fox and Machine Gun Kelly have made their romance Instagram official by posting the first shot of themselves posing for the camera on the photo-sharing site.The couple has been dating for a couple of months after meeting on the set of upcoming movie Midnight in the Switchgrass, and Fox even played her new man’s love interest in his Bloody Valentine video – and now the Transformers star and the rap-rocker have taken their love to Instagram.Taking to his account, Kelly posted a new picture