International movement of sexual exchange of couples, of the English to swing, change, based on the absence of taboos and full freedom, sincerity and mutual respect, seeking the satisfaction of sexual fantasies. Some consider this behavior as perverted and obsessed sex. Others consider it a normal without deception or moral taboos, that it does not hurt anyone and is therefore fully legitimate.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
