Penny Johnson told a story about her first day of filming, in a scene with young teeanged Cirroc, who was still being dressed in onesies that zipped up the back. As she walked on set and looked across the room, there was Cirroc sporting a big boner. But afafter a few minutes, he removed a paper towel tube from his pants-- it was a joke and an ice breaker. That's how Penny decided to take it, anyway. I'm wondering how this "joke" would have played if it were tried today.
Around this time, TV Guide wrote an article about the best/worst dressed TV characters, and Jake was listed as a Worst because of his onesies. Cirroc took the article to the costume designer, and they started dressing him in separates from that point on.