20 ways to be hot all summer.(COSMO BEAUTY BOOK)

These head-turning beauty tricks will ensure you're the sexiest mama around.

1 Punch Up Your Pucker

Vibrant lips are a hit this summer. So what are you waiting for? Go for a sheer gloss version. Our picks: MAC Lustreglass in Budding, $14; FACE Stockholm Nektar in Korsbars Blomma, $19; and Clarins Colour Quench Lip Balm in Red Poppy, $18.50. Pregloss prep: Massage your pout with a damp baby washcloth to ditch flakes. The smoother your smacker is, the better your lacquer will appear.

2 Bag the Best Bronzer

To cop a gorgeous glow, you need a tan shade that works with your skin tone. Here, Matin, a Physicians Formula makeup artist who works with Ashlee Simpson, explains how to select the right one.

If you're fair with yellow undertones, look for a palette that has a combination of warm peach, apricot, and bronze shades--it won't overpower your complexion. Apply it to your forehead, nose, cheekbones, and chin. A good one: Smashbox Fusion Soft Lights in Smashing Dawn, $28.

If you're fair with pink undertones, you need one of the new blush/bronzer hybrids that'll give you the most natural effect. Dust the bronzer over your forehead, nose, and cheeks first, then sweep the bright pink blush just on the apples of your cheeks. Try Bobbi Brown Bronzer/Blush Compact Duo, $35.