In part 6 Mistress Vixen has a series of slaves, each is made to sit on a series of ever increasing size dildos, they start moderate and go up to huge. Mistress Vixen encourages them to sit on them properly as she uses her boot to push them down and to crush their pathetic cocks. At the end of the video there is a nice special feature where we get to see Mistress Vixen in the making of the video - she is such a wonderful person