The song "House Key" by Scott Helman is about a young couple who are considering moving in together. The narrator is hesitant to go back to his own home because he doesn't want to be alone, and instead suggests that they live together. He envisions a home with a cozy atmosphere, complete with a back splash, house cat, and a comfortable TV settee. He acknowledges that they are young and inexperienced in this type of commitment, but believes that they would be good together. The song speaks to the excitement and fears of taking the step to live with someone, accepting each other's quirks and habits, and building a life together. The repeated refrain, "If it's okay with you, it's okay," emphasizes the importance of mutual agreement and consent in the decision to move in together. The lyrics convey a sense of romantic longing and a desire for a happy, secure home with the person he loves.