sex with the husband's boss is beneficial for everyone... the wife gets a good fuck, the boss gets a good fuck, the husband gets a promotion or an increase in salary... everyone is happy.. all it takes is for the wife to spread her legs.
When I was younger and working as a labourer my girlfriend at the time met my boss for sex several times with my full knowledge and approval. My sneaky boss would have me dig a trench and tell me he was picking up materials and instead go round to my flat and fuck my girl.