Mary-Kate Olsen and her boyfriend Olivier Sarkozy watched the New York Knicks play the Dallas Mavericks on Friday night at Madison Square Garden. It seems Olivier and Mary-Kate didn't want to hide their affection, as they hugged, kissed, and laughed throughout the match, which the Knicks won. Olivier also had his two children along for the sporting event. Since getting together with Olivier in the Spring, Mary-Kate has spent plenty of time with the Sarkozy kids, whose mom is Olivier's ex-wife Charlotte Bernard. In fact, one of the first times Olivier and Mary-Kate were spotted together was at a Knicks game back in April.