Victoria's Secret Angel Candice Swanepoel -- Fetch My Butt Washer!

Got a little sand on your perfectly-toned butt? No problem. Just ring that little bell and your loyal butt-washing attendant will be right over ... carrying a gleaming silver pail filled with Fiji water just to de-sand your perky cheeks.

Just one requirement: you must be Victoria's Secret Angel Candice Swanepoel ... who proudly showed off the ridiculous ass-splashing service she got during a recent photo shoot in St. Barths.

FYI -- we were joking about the Fiji part ... but La Toya wasn't.