Kathleen Kamphausen/Lauren Ahn

You're perfect exactly how you are. However, if you're headed to the beach and want to contour your body for a gorgeous glow and toned features, that's cool too. St. Tropez self-tanning pro Sophie Evans is here to tell you how to score perfectly contoured, flawless skin.

Using a self-tanner is a great and easy way to achieve an overall slimmer look year-round, whether you're slipping into a bikini for a summer day at the beach or into a sleek evening gown for a fall wedding. A good self-tan can help to mask cellulite and promote a more defined and contoured physique, Evans says.

To Contour Your Chest:

Jake Fertig

Using a bronzing spray, spray a half-circle in line with the curvature of the top of each breast. Then, use a makeup wedge to accentuate the inner "V" of your cleavage, creating the appearance of a fuller chest. This is easier if you apply the self tanner in the nude, but if you are wearing a bathing suit when you apply the self tanner, you can protect the fabric of your bikini with a tanning mitt as you spray on the formula.

Kathleen Kamphausen/Lauren Ahn

To Contour Your Arms:

Jake Fertig With a dark self-tanning spray (or an at-home self-tanning gun like this one), hold your arm out at a 90-degree angle and begin spraying the inner part of your triceps to give it a more chiseled look. Kathleen Kamphausen Then, starting at the back of your shoulder and curving around the front of your biceps, following the natural curvature in your arm, create a question mark-like shape to give the arm an elongated look and added definition (follow the line in the photo above). Finish by spraying a straight line down the center of your forearm. If you over-sprayed in any area, use the tanning mitt to pat and blend the color into your skin. Kathleen Kamphausen/Lauren Ahn To Contour Your Stomach:

Jake Fertig

Using the dark self-tanning spray, create a half-circle along each side of your tummy (kind of like parentheses around your abs) to bring focus to the inner stomach area. Then, with the spray, trace the natural curves of your abdominal line to create a slimming effect.

Whatever you do, don't try to create abs-looking lines because it won't look natural, Evans says. "You want to play off of and enhance what you already have so it doesn't look fake." Again, buff with the mitt if you over-spray.

Kathleen Kamphausen/Lauren Ahn

To Contour Your Butt:

Jake Fertig This looks harder to do that it actually is. First, bend at your knees and waist to lift your bottom up and out (that way you don't create a telltale crease under your butt cheeks). Next, with the dark bronze tanning spray, lightly spray a curved line under each butt cheek; this makes a shadow and gives your bum a lifted look. Then, spray a half circle (think left and right parentheses) on each side of your butt to disguise any trouble spots, like saddle bags, and to make your bottom appear slimmer. Buff if necessary. Kathleen Kamphausen/Lauren Ahn To Contour Your Legs:

Jake Fertig With the dark bronzing self-tanner, spray a half circle around the inner portion of each thigh (with the openings of the half circles facing inward at each other), and then spray a line down the side of each outer thigh. This will provide the illusion of a slimmer thigh. Lastly, spray one straight line lightly down the shin bone, and you're done! Kathleen Kamphausen/Lauren Ahn Follow Carly on Twitter.

Carly Cardellino Carly Cardellino was the beauty director at Cosmopolitan.

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