Cockold bold
A male and female swinger couple where the man gains sexual gratification through watching his partner engaging in sex acts with one or more other males.
Happy cockold husband watches as his wife/gf is being fucked another men. In many cases husbands advertise for boys/men to fuck their wives/gf on condition they can watch and even masterbate while it takes place.
Swing bold
Swingers can be couples (married or not) or singles.
They have a sexually free spirit. Couples tend to be in love with each other, and only "share" each other sexually with others. Sometimes this means "swapping wives" sometimes it means "group sex".
Single swingers generally despise the dating proces