My horny Boss

I'm 23 and work at the local hardware and the owners are 53 and 48. He goes away a great deal and leave her to run the store. As it's in a small country town they close at noon on Saturdays. During the summer he likes to go fishing and doesn't turn up on Saturdays at all. I was finishing up closing the store and all the other staff were already gone, I always closed up. She was still at the store and as I finished closing, I went to say goodbye and leave. She asked me what I was doing, I said I hadn't anything planned. She asked me could I stay back longer; I said I could. I thought she had something to do and needed help. She took me into office at the back of the store and straight out asked me to fuck her. I was shocked at first, but I decided why not, so we fucked. She was a very horny woman and every time he was away, she wanted me to fuck her after work and still does. I've got a girlfriend now and have started getting sex from her also, using what I've learned from my boss to have great sex with my girlfriend. I don't get paid for staying back unless you count the sex as payment. I see it as a win-win for me.