When she comes home from her date with George (which ended in having sex with him on the back bench of her car), Sharon opens her account on the dating site, to see that she has 4 more messages. She says: "I'm gonna need a bigger back bench". This is a reference to Richard Dreyfuss (who plays George) who starred in 'Jaws' in which one the most iconic movie quotes of all times comes from: "You're gonna need a bigger boat".