Mom once confided to me about her work wife in hospitality in Myrtle Beach. Frumpy little white lady who was unhappy at home. Found a black male employee with a huge cock and could last forever. First time he fucked her he brought off three times in the first tweny minutes. And it was special because she was never the same after that.
There is no greater pleasure for your husband either. To see the woman he loves and desires give herself to another man like this...To take from him connection and sensations her husband can't give her...there is no describing the emotions going through your husband, but he has to have them just as you have to have yours.