They instantly fell for each other, and before long gave in to their temptations and struck up an affair. When Denise witnessed this unfold, she threatened to blackmail Dr. Eric with lewd photos, so that Genny would disapprove of his "seedy" behavior and dump him.
Immediately smitten with each other, they couldn't resist their attraction and started a romantic relationship.  When Denise saw this unfold, she threatened to release explicit photos of Dr. Eric to force Genny to end the relationship due to his "unacceptable" behavior.