Her Boss

My wife has worked for her boss since school when she began as an intern. He's the MD of a financial firm and she's been his personal plaything for years. She was totally honest with me when we got to seeing each other exclusively. She had to let me know that she was actually "owned" by her boss and he'd agreed she could have outside interests, meaning me.
He apparently decided I was OK for his purposes since he decided to dominate me and my then gf and double his pleasure.
It began subtly but has gotten to the point where we have all sorts of games but certain things are pretty much standard procedure now.
For one thing he likes to pick her up mornings with his chauffeur driven car and he will finger her and usually get a blowjob. She needs to be careful and swallow so as to keep her clothes clean. She always swallows anyway unless she's told not to.
His chauffeur has watched most of the time in the mirror and he always smirks when I see him and he'll sometimes say something about my wife looking especially fine this morning, meaning when he watched her sucking his boss off.
I admit it's very exciting when Mr. James drops her off at the flat after work and he might take me aside and tell me what a wonderful slut I married and how much he loves shagging her especially her arse. He's even made me suck his finger after he'd been fingering her arse all the way home. I confess that I love it and am getting hard even telling it.
She says some day she would like to see me suck him clean after they have an afternoon rendezvous in the country. Every once in awhile I remind her what she said.