Quick story to it:
When getting an older pet it's important to make sure to adopt it to it's new environment. The younger pet is often contempt with just getting it's pussy pleased. Here you are going to need to put in more work. If you are not used to this type of holes it might be to much for you the first time. The wet, sweet and eager holes are among the best but need special care.
When training the pet it might get out of control. If the pussy can't take anymore or it's to good for you, you might need to fuck the ass. Make sure to go hard right away if needed so the pet can enjoy it but still understand that it is being disciplined. The pet gains weight over the years so the body might be thicker then expected so don't be afraid to take a break in the training or finish up early.
The older pets needs to feed more than the young ones. It's an important ritual that makes them feel wanted so don't turn them away. Remember at this time of age they have trouble to control their hunger so you might need to tell them to stop feeding when you out of cream. Don't worry about the mess, the pet will clean up any leftovers.