Keep in mind you might not have a whole lot of time for foreplay. So just focus on getting the job done. For school-aged children, find something to keep them occupied for a few minutes - a movie, a video game or a book. Once you are certain that they will be entertained for the interim, sneak off to a room or bathroom and lock the door. Keep it down so they have no idea what's going on behind closed doors. You may even warn them prior to your session that Mommy and Daddy have some important things to discuss. Obviously, children at a certain age will be able to break that code and realize Mom and Dad are getting down and dirty. In such cases, refrain from doing the deed, especially if your kids have friends over. Regardless of your child's age, it is never appropriate to have sex in front of the kids.