In the Stewarts' kitchen a little later. Richard is drinking a soda. Marilyn is writing a grocery list.
Marilyn: [counting] Grandpa, Ellen, Philip, Robbie, you and me. That's six steaks.
Richard: Don't forget Susan.
Marilyn: Seven steaks. Cooking dinner for the entire family is not so easy. [She points to her list.] The shopping: the salad: tomatoes, lettuce, cucumbers, and onions. The main course: steak and potatoes. Richard, how much broccoli do I need for seven people?
Richard: Marilyn, I have to tell you something. At today's exercise class ... 
Marilyn: Yes, Richard.
Richard: Well, I didn't really exercise.
Marilyn: I knew it!
Richard: I wanted to, but Jack Davis needed a photographer. [He laughs.] I'm sorry, Marilyn.
Marilyn: I don't understand. Did you exercise or not?
Richard: No. Instead of exercising, I photographed the class.
Marilyn: And you didn't exercise?
Richard: No.
Marilyn: There's another advanced class today at four o'clock. We'll go together.
Richard: What about the bet?
Marilyn: Oh, the bet is still on, but you shop for the groceries. Remember, you win, and I cook dinner for the entire family.
Richard: You win, and I cook dinner for the entire family.
Marilyn: Including Susan. Four o'clock at the advanced exercise class. With me. [They shake hands and laugh.]
Later, at the aerobics class. Marilyn and Richard are exercising to music. They are following the instructor's and Jack's directions.
Jack: Don't forget to breathe.
Instructor: Skip, hop, front. Twist ... again ... OK, now ... scissors.
Richard: This is fun. It's a piece of cake.
Marilyn: Yeah. Just wait.
Instructor: 5, 6, 7, go right, 1, 2, back, 2, 3, 1, 2, 3, pony, pony ... 1, 2, 3, kick ... 1, 2, 3, kick ... pony. And twist, twist.
Jack: OK. Let's pick up the pace. [Richard is getting tired.]
Marilyn: How are you doing, Richard?
Richard: I can barely move.
Instructor: 2, 3, 4, front. Now we're going to run it off. Front ... knees up, knees up.
Jack: OK. Finish off by jogging in place. OK. Keep those knees up. All right. That's it for today. Thank you, everyone. See you next week.
Richard: [to Marilyn] Thank you, Jack, but no thank you.
Marilyn: The advanced exercise class is not so easy, huh? [Richard slowly falls to the floor.]
Richard: No, no. You were right. I was wrong.
Marilyn: Come on, Richard. Get up. Let's go. You have to cook dinner for the entire family.
Richard: Marilyn, I'm exhausted. I can't move.
Marilyn: Oh, you'll do it. It's a piece of cake. [She snaps her fingers.]
Jack: Excuse me, Richard, Marilyn.
Richard: You are a terrific instructor, Jack.
Jack: Thanks. But I have a question. Is this your very first advanced aerobics class?
Richard: [He laughs.] Yes, it is.
Jack: You are in great shape, Richard. Very few people last in this class for the full hour the very first time.
Marilyn: It's true. You are in great shape.
Richard: Thanks!
Marilyn: I think we'll cook dinner together. [They smile and kiss.]