Cozy Night In

Start the evening by creating a warm and cozy atmosphere at home. Dim the lights, maybe light a sensational aromatic candle, and nest together on the couch or the bed. Choose a classic horror movie - the perfect All Hallows' Eve ambiance for October - and let yourselves be wrapped up in its chilling embrace. Talk about the film, share your fears, and hold each other close when the tension escalates. This provides comfort but also builds a significant bond between you.
As the movie progresses, gently start playing with your partner's fingers or hair. The idea is to create a distracting, sensual tension that contrasts with the horror unfolding on the screen. Soft caresses escalating to passionate kisses can make this scared-rigid moment into something incredibly erotic.
When the movie reaches its peak terror, channel the adrenaline rush from the fear into passion for your partner. Sneak in more intense touches where your partner likes it most – it may be their neck, thighs, or other unique spots that give them joy. In the end, after all the thrilling suspense, it will be time to fight off the fear - together, in the most enjoyable way possible.

The beauty of this scenario is that it requires very little preparation. All you need is a comfy space, like a couch or bed, a cozy blanket, and perhaps some popcorn for the authentic at-home movie vibe. Make sure to research the movie in advance - a classic horror film that neither of you've seen before works best for that spine-chilling excitement.
Keep the remote control handy so that you can adjust the volume whenever the scene gets too scary or heated. This prepares you to overrule any loud noises that might interrupt your intimate moments.
Remember, emotional safety is as important as physical in scenarios like this where you're instigating fear for fun. Make sure your partner is comfortable with horror movies and that the one you watch is not overly violent or disturbing, as the goal is to ignite passion, not genuine distress.

Approaching this scenario with a playful and understanding mindset will greatly enhance the experience. Remember, the point here is fun and arousal - if at any point, the movie gets too scary or triggering for either of you, don't hesitate to switch it off or change to a less horrifying movie. The essential thing is to keep the communication open and be attentive to each other's emotions.
To add a playful challenge, you could establish a rule that you have to continue the intimate actions - kissing, caressing, etc. - until the scene on the movie gets too scary. Then you would stop - and start again when the scary moment is over. This gives kind of a start-stop rhythm that can provide enjoyment to both the news and experienced role-players.
Lastly, the scenario does not necessarily end when the movie does. The fear from the movie and the comfort of each other can easily lead into more sensual activities. You can let your hands wander more freely and potentially move the action from the couch to the bedroom once the credits roll. The important thing is to move at your own pace and communicate with each other to ensure maximum pleasure for both.