Cuckolding

[Sonia]

When a man watches his wife or girlfriend have sex with another man.

[Jessica]

cuckold: a man married to an unfaithful wife.

so, cuckolding is whne the wife is doing the cheating.

[Couch Potatoe]

A cuckold is a man who gets turned on his watching his wife fuck other men. Cuckolding occurs when a married woman fucks another man with her husbands full knowledge and consent. She does it because it makes him hard as a rock and often because he is inadequate in bed.

[Dianne]

present participle of cuckold