Sofia Richie and her boyfriend, music executive Elliot Grainge, are living in perfect harmony. According to a source close to the model, the couple is "very serious" about their relationship – so much so that they've already start thinking about taking it to the next level. "They have talked about getting engaged and it's something that Sofia wants and is looking forward to," the insider exclusively tells. "They are a great match and it's going really well. Sofia and Elliot are currently live together and the adjustment has been so easy and seamless." The source adds that the two have bonded over their shared passions for food and travelling, and Sofia "loves to cook for Elliot and plan fun things for them to do." Though Elliot had previously appeared on Sofia's Instagram in a friendly elevator selfie, Sofia went public with their romance in April by posting a series of PDA-packed photos. Sofia and Elliot "have known each other for years" due to their fathers being friends but "weren't close growing up." They started hanging out this year and sparks flew.