Swinging, sometimes called wife swapping or partner swapping, is a non-monogamous behavior in which both singles and partners in a committed relationship engage in sexual activities with others as a recreational or social activity.
REASON BEHIND SWINGING
People may choose a swinging lifestyle for a variety of reasons. Many cite the increased quality, quantity, and frequency of sex. Some people may engage in swinging to add variety into their otherwise conventional sex lives or due to their curiosity. Some couples see swinging as a healthy outlet and means to strengthen their relationship. Others regard such activities as merely a social and recreational interaction with others.
