After some debate, Charlene decides to go tell the couple about the video, but when she goes to meet them, it's revealed that the couple PLANTED the footage to see how she'd react!
The couple probes the woman, catching on to the fact that she's fascinated and perhaps willing to try some of the stuff she saw on the video. Although Charlene tries to deny it, she can't resist her curiosity as she eventually gives in to explore her twisted desires with the couple. That's when the couple leads Charlene through her first kinky experience, complete with gagging and nipple clamps, changing their friendship forever.