Megan Fox and Machine Gun Kelly are engaged! The two took to Instagram to announce their engagement. Fox wrote that a year and a half after she began dating her musician/actor beau "having walked through hell together, and having laughed more than I ever imagined possible, he asked me to marry him." …and then, she said, they drank each other’s blood. 📸 Jamie McCarthy/Getty Images Phillip Faraone/Getty Images #meganfox #machinegunkelly