Oh, that's my senior prom dress,' " Vanessa tells PEOPLE ... The only people she told about re-wearing her mom's old dress were her grandma, brother and twin sister, Valerie.

With her Marine boyfriend away at training, Skylar Fontaine enlisted the help of the man's 2-year-old brother when it came time to take prom photos Skylar Fontaine, of New Orleans, was devastated ...