If your wife is amenable to sharing her pussy with a friend, you shouldn’t have any problem finding a “willing” and able lover who wants some adulterous sex. Married friends are more likely to accept your offer and they are more discreet about having sex with another man’s wife.
If a husband and wife agree to share her pussy with a friend, they should allow the friend the privilege of cumming in her to make the affair a real pleasurable experience. The wife will enjoy having her pussy inseminated just as much as the friend wants to discharge his semen deep inside her body.