I'm stuck in the mission: A Surprise Encounter
After Leslie has cooled down, interact with her the next morning. She will want some time away with you, in the evening take her to Lakeview and go to the abandoned Private Campsite.
Nothing happens
After you did the movie night quest :
From my walkthrough :
new day.Talk to Leslie, skip till next day. Talk to Leslie again. She wants to go to a private camping site in the evening.
Skip until evening, go there with Leslie, Go to the area(lakeview) where you had to get the boombox. There's a building with a pool. South west of the pool at the edge there will be a new opening.
Save before another battle takes place. Protect Leslie, once you win you'll go back home she'll tell you she wants you to meet her in her room at midnight with wine.
Go to you room and rest till midnight. Go to her. enjoy h scene.
NExt day, talk to Leslie. New quest, go back to the private camping site with Leslie and find another movie. Go back home.
Skip till night. Movie night with Leslie, select new movie. New h scene enjoy. After go to her room, have sex,same scene, different dialogue new X-ray option. Edn of Leslie content.
So make sure you talk to her after you did the movie quest then skip the day and talk to her again and she should tell you she wants to go to a camping site with you in the evening.