Flirtatious conversations should generally be innocent and pleasant, not laced with innuendo. When you add attraction and desire to inappropriate talk, you’re playing with fire. All it takes is for one person to share his or her favorite fantasy before one of you decides to act it out. A good rule of thumb is this: Don’t say anything you know you wouldn’t say in front of your partner. And if that doesn’t work, consider how you’d feel if you knew your partner was engaging in sex talk with someone else. Not cool.