How do your sims on The Sims 2 become vampires?

Answer 1

first of all you need the sims 2 nightlife expansion pack then you wait until it's night the enter the cheat box by pressing "shift+ ctrl+c" then a box will open on top of your screen the type in "boolprop testingcheatsenabled true" then if the box disappers then it worked so then press and hold shift and click on the sim you want to become a vampire and there should be a option that says make vampire

and to cure vampirism call the matchmaker and buy a vampisim potion

hope this helped