Whether it's your first romp with a new guy or getting intimate with your longtime partner, there are certain things that can happen during sex that can totally kill the mood. First, consider your environment. In the effort for things to be as sexy as possible, be sure there are no fire hazards, like candles burning where they shouldn't or gauze-y materials draped over lampshades. It may look hot, but the fire it creates really will be hot. If you're trying to seduce your partner, give your sexy outfit a test drive to be sure it comes off easily. A corset with complicated straps and snaps will have him thinking more about the logistics of your lingerie than what's underneath.