Jake and his 35 year old girlfriend with three kids come to visit Alan and Walden. But while Jake wants to propose and elope in Las Vegas, his girlfriend thinks of it as nothing more than a sex-based fun relationship. Meanwhile, Alan tries to get used to the fact that Jake has a girlfriend twice his age and Walden thinks of things he can do with Jakes' rarely used room, such as turn it into a home theater of a home gyme, etc.