JKNK-128 - Mature woman in her 50s and 60s playing with long nipples

The nipples of mature women in their 50s and 60s have become enlarged and darkened over time. I violently attack the nipples that stretch freely. There are many tortures that can be done only by a mature woman with a wealth of experience, such as wrapping her in a wire and compressing her, tying a rubber band around her, hanging a plastic bottle, holding her up with clothespins, etc. Even pain has turned into pleasure.