Britney arrow nip ✔slip}
Britney spear ❣revealing her ❣sensational curves}
Britney lance ❣unintentionally revealing a bit too much}
Britney arrow exposed inadvertently}
Britney arrow ✔with a ❣wardrobe malfunction}
Britney spear caught in an awkward slip-up}
Britney arrow ❣accidentally ✔flashing on stage
Britney spear with a slip of elegance
These are just a few examples. Feel free to mix and match the synonyms to create more unique content.