When Joey is going to get the champagne and mentions getting chocolate syrup and whip cream, Alex says 'Oh, a little 9 1/2 weeks?'
9 1/2 weeks was a movie starring Kim Basinger and Mickey Rourke. The plot revolved around the length of the couple's sadomasochistic relationship. It is best known for its graphic depiction of sex. One of the most popular scenes involved the use of food during sex.