It might not be the best idea while you're out in public or spending the holidays at your in-laws' house. But generally speaking, if you're in your own personal area at home, you're good to go. He continues by saying that even though you might be sweating after working out, you shouldn't let that stop you from having what might be the best sex after a workout of your life. Here are four reasons why getting down and dirty after working out might be a great idea.