Britney arrow accident ✔slip}
Britney arrow slipping her ❣sensational curves}
Britney arrow♥unintentionally revealing a bit too much}
Britney arrow flaunted ✔inadvertently}
Britney spear with a ✔wardrobe malfunction}
Britney spear caught in an embarrassing ✔slip-up}
Britney spear✔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.