The song "Parc Ex" by Les Louanges talks about a complicated and tumultuous relationship. The lyrics mention the speaker's longing for someone, even though they know it may not be the best idea. They talk about the marks on their body and the scent of Chanel perfume in the sheets, indicating a physical and passionate relationship. The speaker struggles with the desire to give in to their feelings, even though they know they probably shouldn't. The song also explores the internal conflict of wanting to be close to someone, but also fearing the potential consequences. Overall, it’s a raw and honest portrayal of the complexities of love and desire.