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