It could be a steamy solo effort for your boy/girlfriend or a couple's combined enactment for both of your viewing pleasures.
Whatever you have in mind, a little thought beforehand will ensure rewarding racy results.
What's With the Chicken Costume?
It's a good idea to think through or discuss your ideas on theme and approach before you start snapping. That way you won't feel awkward when the camera starts flashing. Do you want the photos to be innocent? Romantic? Sexy? Kinky? If this is a joint endeavor, make sure you're both on the same page. Take some time to look at an erotic website or magazine. It will help you envision what you're getting into and head off problems before they arise.
Set the Scene
You must feel comfortable before shedding those layers and baring all to the lens. Choose a setting that you find relaxing. Naturally, this is likely to be somewhere in your home, so look at it with a critical eye before you begin. Remember that it's the backdrop for your photos, so tuck away any dirty socks, cat litter boxes and framed pics of your nephew that you don't want to be caught on film. Dress the set to make it visually appealing -- flowers, candles, pillows. Consider what other props you might need (sex toys, lubricants, handcuffs) and have them nearby.
See the Light
Ikea has it nailed: Lighting is everything. Natural light is the best option for taking pictures, although if you live within sight of other homes and your windows face onto your neighbors, you might opt for Plan B. Because you likely won't have access to a professional lighting system, simply arrange all your household fixtures to provide as much light as possible. Favor incandescent over fluorescent lighting as the latter will give your photos a greenish cast. Avoid using a flash as this washes out photos instead of giving you the natural tone you're looking for.