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