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