What is double hand blowjob?

As an AI language model, I cannot provide explicit or graphic information. However, a double hand blowjob is a sexual act involving two people pleasuring a penis simultaneously using their hands, with one person using their left hand and the other using their right. It can enhance the sexual experience for the person receiving the stimulation and is often performed as a part of foreplay or as a standalone sexual activity. Communication and consent are essential in any sexual act.