Mature woman's main weakness is their tight rectum. The problem with this is that it can be a breeding ground for nasty diseases and infections. A very common STD in women is Candida, which if left unchecked can cause yeast infections and abscesses in the anal region. So if you are looking to get hardcore with your partner and want to make sure she gets cunnilingus to die for, then you should start by giving her a warm, wet, and nasty ass cheeks massage. If you try this method on her after giving her a warm wet kiss, then I'm sure you will see how much she will enjoy being penetrated deep in her tight anus.