What you need: A comfortable bed, and complete faith that Freddy Krueger is not real
How it works: Lucid dreaming is the ability to gain control of your dream and acknowledge that you’re asleep. When you gain control, you can do or feel whatever you want—e.g. sex dreams.
It's (apparently) relatively simple to accomplish:
Step 1: Set up dream recall. Force yourself to remember your dreams upon awakening—writing them down in a journal helps.
Step 2: Focus your intent. When falling asleep, concentrate on setting up a scenario you can recognize as a dream.
Step 3: See yourself becoming lucid. Repeatedly force yourself to have the same dream until you're able to recognize you're dreaming. For example, Jennifer Lawrence rides into a room on a velociraptor.
Step 4: Go nuts. Seriously, have that threesome with Jennifer Lawrence and the velociraptor you've been aching for.