Fisting : (6)

Fisting is a type of hardcore sexual activity in which one partner inserts their entire hand, or multiple hands, into the other partner's genitals or anus. It is generally considered an extreme form of anal stimulation and can be dangerous if not done properly. Fisting can also involve vaginal stimulation with both hands. It requires great trust, communication and comfort between partners to ensure it is enjoyable and safe for all involved.