Something risqué hints at sex or sexual content. risqué material isn't in your face or extreme — it's just a little naughty.
When it comes to sexual material, porn features sex and hardly anything else. On the other end of the spectrum are movies, songs, and books that are simply risqué: these things just have a little sexual content. They might just mention sexual situations or sort of tease the viewer, but not show much. Things that are risqué are also called "spicy" or "racy."