sex that involves two people who have no desire or intention of ever commiting to any type of exclusive relationship with each other
eliminates many stressful factors that may accompany a commited relationship such as: jealousy, mind games, verbal and/or physical abuse, marriage, accountability of daily actions/wherabouts, lack of quailty and/or frequency in sexual activity, boredom, and many more I'm sure.
*****THE BEST KIND OF SEX*****
He and I have casual sex. It is by-far the best sex I've ever had and can hardly wait for the next time we meet!
***Additional note: casual sex is not the same as promiscuous sex in that casual sex can be had with one person time after time while to fit the definition of promiscuous multiple partners are required