What's naughty and nice? What's bold, yet demure? What has the power to convey sex appeal as well as girlish fun? The sweetheart neckline. One of my all time favorites, and if you've never tried one on, it's time. It leaves just enough to the imagination, while showing off decolletage like nothing else. Because it gives structure and shape to your chest, both the well endowed and the less so, feel empowered in it. And it's simply darling paired with a top knot, as it also does much to show off the gentle slope of the female shoulder. But I don't want to tease, check out some runway looks and sweethearts on the market (for under $70!) to inspire your next shopping trip!