A sultry scarlet smile instantly upgrades any night-out look, but achieving that perfect pout can be daunting. PopSugar Beauty gives a step-by-step guide for pulling off a gorgeous red lip, from choosing the best shade for your skin tone to making it last all night long. If you don't have plans for Friday night, make some, because you're ready to go out and rock those ruby red lips! Angelina Jolie who?
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