"Now open your mouth wide" said the Dentist, smirking, as he entered the room. He was about to enter the patient's mouth - another day at the job.
"Let's split her in half" said the surgeon, smirking, as he entered the room. He was about to make a cut, knowing he had been in the cut with his homegirl a little earlier - another day at the job.
"Let's put this tube in there" said the urologist, smirking, as he entered the room. He loved telling that to his patients. The look he would get back was priceless - another day at the job.
"Let me put this in there" said the gynegologist, smirking, as he entered the room. 'I bet your partner would find this funny' he thought to himself - another day at the job.
"Now let's see what we have here" said the radiologist, smirking, as he entered the room. He was by himself in the dark, as usual, but he always said that since he thought it made him sound cool - another day at the job.
I just made a bunch of male-perspective scenarios OP. Decide for yourself if you want to choose one over the other.