13 Simple But Incredibly Sexy Valentine's Day Hair Ideas

A half-up style can be worn anytime, anywhere - but topped off with a silky ribbon and a matte red lipstick, the style becomes hopelessly romantic.

All you need is a little water and some hair gel to whip up this slicked-back style. Wet down the top of your hair, brush it back, and then work a styling gel through it until it's fully coated (hair oil can work too, but it's a little messier). Red lipstick and a red suit are optional, but they sure are thematic.

A low-braid on second-day waves, tied off with some ribbon or string, is as pretty as it is effortless.

If you've been rocking a topknot all day, just pull-put a few face-framing pieces before you end the night with a romantic date. Not only does it soften the look, but it gives you an excuse to let your hair get a little messy.

These shiny waves on Adriana Lima reference the Old Hollywood type but are a lot less rigid and time-consuming. If your hair is already straight, just wrap a few large chunks around a big curling iron, give the coil a minute to cool, then release and brush through them. Top it off with some shine spray and you're good to go.

If your hair is naturally wavy, just mist it all-over with a texturizing spray and curl a few face-framing pieces way from your face.

It's one of the cardinal rules of curls to never brush through them, but Chanel Iman is making a case for looser, fluffier curls.

Nothing elevates a basic hairstyle to something more romantic like a sparkly headband, as seen here on Emily Blunt.

Like something out of a Victorian romance novel, actress Haley Bennett's bouncy curls are as soft and flirty as they come.

Flipping your curls over to one side, like model Jourdan Dunn, will give your hair a casual, touchable vibe. Keep flipping the part side-to-side to pump up the volume in an instant.

Using a clear elastic, pull your hair back into a bun but let your ends hang loose. This falling-out knot looks best when it's purposefully messy.

You don't need long hair to get bombshell waves. Using a tapered curling iron, create loose bends by curling them in opposite directions (so away from your face, then toward your face). This makes the waves look purposefully tousled.

Give your basic blowout a twist by working a styling gel or oil through your part to create this shiny, flipped-over finish.