Margot floral swing dress size small

Margot dress size small floral pattern, very soft pink color, the dress is very flowey and twirly. It has a tie up (like corset) in the back, and sort of a hidden zipper on the left side. Bought from Poshmark and tried it on but it was too small! 😞 so reposhing, clean no stains, no holes, smoke free home