Masturbating before work to calm down

It's early on a Monday morning and I (M36) am lying in bed thinking that I'll be seeing this horny milf at work again in a few hours. She's in her mid-50s, blonde and has a great figure. All I can think about is how I'm going to fuck her on the desk in my office. Her tits are hanging out and they jiggle with every thrust. My cock is now really hard and wet and I start wanking it. I imagine her putting her lips around my cock and starting to suck it, slowly at first and then faster and faster. A big load of cum shoots straight into her mouth and she swallows with pleasure. That was really necessary now. Now I'm satisfied for a few hours and can go to work.