Ethan got home and unlocked the door, his mum was at work and his dad was off on a climbing trip so Ethan was home alone. Ethan ran straight to his bedroom and opened the box. Inside there was, two syringes, two small vials that said "activation potion", a small tub of super numbing cream and a note that read "instructions" on the front. Ethan opened the note and began to read.
To begin the spell, both participants need to be present, if one is unwilling then they may have to be knocked out or sedated. If the participants are both very diffrent in size then it is advised that they have no clothes on due to the smaller participant ripping their clothes. The spell will be performed differently depending on wether both participants are female, both are male or one is male and one is female.
Ethan skipped to the male and male section.
First the syringes will be inserted into the testicals of both participants to draw out semen, it doesn't matter how much as long as both participants have draw out as much semen as possible and make sure you alway know which syringe is which. Before doing this, it is heavily advised that you apply the super numbing cream to the testicals as injecting a syringe into that area can be exteamly painful. Then use each syringe to take some of the activation potion out of each vial so it mixes with the semen. Next inject the semen from participant 1 into the testicals of participant 2 and the semen of participant 2 into the testicals of participant 1. After a few seconds, both participants should start to there bodies changing and soon they will have swapped bodies. Good luck
Ethan was a little grossed out about the semen part but if it will really get him to swap bodies with Mark then it's worth a shot.