The third point of view:
The waiter was embarrassed to death because he was not only shocked by their conversation but was sporting an erection as well - he was turned on by her words.
Thanks to the sudden cough, it attracted Isabella's attention and she glanced over the waiter that had a flush on his face. Luckily for the poor man, he had an apron around his waist and his "discomfort" was not seen - at that moment.
"If you would excuse me," The poor waiter said once he was done and quickly took his leave, drawing Pedro's attention as well. And it was the stiffness in his walking that gave him away and the couples finally realized what was going on.
"You were saying?" Pedro hinted at the damage she has done to the poor waiter who just happened to be at the right place at the wrong time.
