The twosome never let go of each other at the Madison Square Garden match, which would have been difficult for Olsen to see anyway given that she never took off her sunglasses.
Together since May, 2012, Olsen, 27, and Sarkozy, 44, live together in his multimillion dollar Manhattan townhouse.
He is the father of two from his previous marriage, and Olsen is reportedly very anxious to have a baby with Sarkozy herself.
Her slightly fuller face has some even speculating the Full House star-turned fashion mogul is already pregnant!
Tell us what you think? Should MK start her own full house with Sarkozy? Let us know in comments.