I used to call you after midnight It was cool 'cause we both agreed We were easy, kinda weekly Just a friend sleeping next to me Thought I could love you with my body not my heart I guess we weren't good at keepin' them apart You say you love me and the feeling's mutual But what the hell, I thought we said Let's keep it casual Let's keep it casual Let's keep it casual Let's keep it casual Let's keep it casual Now I'm sleeping in your T-shirt With your hands wrapped around my waist And you call me things like baby And I stayed over every day Thought I could love you with my body not my heart I guess we weren't good at keepin' them apart You say you love me and the feeling's mutual Let's keep it casual I thought we said Let's keep it casual Let's keep it casual I thought we Let's keep it casual