Described as an "intense reddish-burgundy", Fever ($20 USD) is a dark red raspberry with CRAZY pigmentation. I'm not kidding you, if someone of my skintone (about NW110-115) wanted to use this, you have to just barely tap the top of the product with the brush and make sure you buff it out well! A stippling brush like MAC's 188 is recommended for use in order to get just a light dusting of product. The result is a GORGEOUS natural flush, the combination of the red and pink in the color blends out to mimic a healthy flush in the skin when used lightly (which is an understatement, but you get the picture).
Right: swatched lightly then blended out. Left: swatched heavily
This is definitely one of those "don't wanna overdo it" blushes. I accidentally put too much on the brush once and ended up looking like a sunburned clown. I would only recommend going heavy-handed if you have significantly darker skin than I do.
The Verdict? If you're looking for a blush that naturally mimics pinched cheeks, then hunt it down! Luckily it won't be hard to find, as Fever is a part of the permanent blush collection.