Sleepover
That night Catherine chose to sleepover in John's flat for the first time, she wants to show to her mother that she is adult enough to decide for herself.
John was delighted of course with Catherine's decision. His naughty mind has already planned some entertaining activities for both of them.
They watched some horror movies first in his mini theater, Catherine kept screaming while watching the horror movie to John's amusement.
Especially that the theme of the horror movie is about a group of teenagers who were camping in the forest. Among them was a couple who are stranded in a forest far away from their companions. Earlier in the story, the couple was having a skinny dipping in the lake not far away from their camp. Then they were having sex right there in the open air. While they were at the peak of their pleasurable activity, some dark shadows were watching them a few meters away.