Running with scissors - S3-E11
Revealing mistake: When Samantha and her partner are using the 'swing,' you can tell from the long shot that Kim Cattrall is actually wearing some sort of prosthetic around her hips, to simulate her rear area. It is larger, and sticks out prominently in an unnatural manner. This was probably done to ensure modesty for the actress. (00:22:30)
Answer: Yes, it is.