You have to first make sure they love each other enough to get into bed together. Once you've done that, make them both relax on the bed. Then, with them both relaxing, you can get one sim to...
You need to go to a community lot and wait until a witch arrives. Then, befriend the witch and when you have done so, there should be an interaction saying "Teach me the ways of the ...". -A
You need Sims 2 Pets Expansion Pack. When you have it, at night a dog (Wolf, you can tell it's a wolf because it will have glowing yellow eyes) and all you have to do is greet, and then become pet...