Step 1 cutely molest coworker.
Step 2 sex it up
Step 3 get coworker to be on the same shift again.
Step 4 enjoy coworker repeatedly.
Step 5 repeat step 4 until satisfied.
Well, I don't blame him, sometimes seeing something like that for just an instant can burn it into your eyes for a long time.
Nice ending, too. She got what she wanted and he doesn't seem very displeased.