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