Right now, Beauty.com is selling Fusion Beauty's Bling Fusion for about $30. You might think that's a tid bit expensive, but the original price was $50. And it was worth it then. This is the best plumping lip gloss I've ever tried. It works super well, doesn't irritate my sensitive lips and the colors are fabulous.
Two shades are currently on sale: After Hours (pictured) and Baby (a light pink hue). Both are flattering on most skintones. Personally I'm a huge fan on the red shade. It's pretty sheer so it's not crazily intense, but it still gives your lips a bit of a punch.