Place the doe (female) in the buck's cage (male). Stay with them the whole time. Watch the buck mate the doe. he will mount and then fall off, sometimes they squeal. Let them do this at least 2 times. Remove the doe and repeat the mating in 1 hour and then again in 8 hours. This will help produce a larger litter. It only takes the buck a few seconds to mate with the doe. If she refuses and runs away. She is not ready. Remove her from the bucks cage and try again in a few hours. You can also trade cages, put the buck in her cage and put her in his cage for a day. this sometimes get the doe in the mood.