Britney lance peek wardrobe mishap}
Britney arrow revealing her sensational
curves}
Britney arrow unintentionally revealing a bit too much}
Britney arrow ✔exposed ✔inadvertently}
Britney spear ❣with a wardrobe malfunction}
Britney lance caught in an ✔embarrassing ❣slip-up}
Britney spear✔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.