Funny jokes-Stay fit

Mary and Sue hadn’t seen each other for years. When they finally sat down to lunch, Mary was stunned at how trim and healthy Sue looked.
“My God,” she said, “What do you do to stay so fit?”
“Well,” answered Sue, “I’ve found that nothing keeps me trimmer than having affairs.”
“Really!” exclaimed Mary, looking her friend up and down. “You simply must tell me who does your catering!”