How Sherlock sends John Watson on a psychedelic mind trip without using mind altering drugs.
Replace the regular light bulb in the bed room with a black light bulb.
Make sure the bed room is completely dark.
Wait for John to turn on the light.
Enjoy John's reaction when he sees you wearing nothing but neon yellow pumps and florescent body paint.
Have sex.
Make John orgasm until his eyes spin.
Repeat steps 5 & 6 as many times as possible.
Enjoy the magical mystical tour.