I showed up at your office late in the afternoon when nobody else was around to notice me come in. We've got to be on the road in 15 minutes to make the lecture we'll attend this evening. You ask if anyone saw me come into the office and I say "no." The bulge in your pants looks agonizing to endure unrelieved. Obviously you have been reading my notes over the last few days. You ask if I'd like a quickie and I say "please!"
Lock the door just in case and take me around the corner where nobody could see in the doorwindow even if they looked. Turn off the light so your office appears unoccupied.
In 2 seconds I have removed my shirt and am kicking off my shoes. As you drop your pants I am already kicking off my jeans and underwear and socks. I'm stark naked while your pants are down to your knees, shirt still on. You've been thinking about it all week so it won't take much to ready you for the situation. You were already dripping in your pants waiting for me to arrive. You're glad there's no wasting time today.