Less Than 5% of People Have These Rare Lips #anatomy Cupid's bow lips are characterized by a distinctive shape that resembles the bow of Cupid, the Roman god of love. If you're wondering whether you have Cupid's bow lips, here's a simple way to identify them: Stand in front of a mirror in a well-lit area. Relax your face and keep your lips slightly parted. Observe the middle part of your upper lip, known as the philtrum. Look for a distinct curve or indentation in the center of your upper lip, c