Managers Perk

I'm my managers perk at work. That's what he calls me.
He fucks me literally every morning at work before the other employees get in.
Along with my manager, who's in his fifties, I open up the building and offices, then go into his office. He has me strip off naked, take out his cock, suck it for him and assume any position he wants to fuck me in that day.
He has a large sofa in his office and he mostly fucks me on that. But he'll also fuck me across his desk, the floor and even up against the window.
He doesn't have a big cock, my boyfriend's is larger, but he fucks me so hard every time, I never fail to cum before he unloads up my arse.
When his wife occasionally calls by to pick him up for lunch, she always gives me a knowing look. She's never said anything, but I know she knows he's fucking me.