The song "Play" by Jessie J is about a playful and flirtatious relationship between two people. The lyrics express a desire to have fun and engage in playful activities with someone. It talks about wanting to spend time and play games with the person, both figuratively and literally. The song also touches on the theme of dishonesty in a relationship. Jessie J admits to lying when she said there was nothing between them and suggests that the other person wanted to just be friends. However, she wants more than that and asks for their attention and time. The chorus repeatedly emphasizes the desire to play and shows an eagerness to engage in a playful and intimate relationship. The lyrics talk about wanting to "lay" with the person and light a flame with them, indicating a strong physical attraction. Overall, the song portrays a passionate and playful relationship where both parties desire more than just friendship and are willing to put in the effort to make it work.