What's so funny about the conversation between a eunuch and the emperor?

The eunuch eavesdropped on the result of the love between the emperor and the queen (no laughter, no money). A new eunuch, afraid of not hearing the emperor's orders when he fell asleep, and afraid of delaying the good things of the emperor and the queen, hid under the bed. I found it the next morning ... The emperor said, "Well, you slave, how many hours did you stay under my bed?" The eunuch knelt on the ground and replied, "If you go back to the emperor, the slave has been under the bed for five nights." The emperor said, "What did you hear?" Eunuch: "First, you and the Empress are enjoying the painting." Emperor: "What do you mean?" Eunuch: "Listen to you and Empress, let me see the breasts of Shuangfeng." Emperor: "What about Er Geng?" Eunuch: "During the second watch, you seem to have fallen to the ground." Emperor: "What do you mean?" Eunuch: "Listen to the empress: come up quickly!" " Emperor: "What should I do in the dead of night?" Eunuch: "You seem to be eating crabs." Emperor: "What do you mean?" Eunuch: "whatever you say: break your leg!" " Emperor: "What about the fourth watch?" Eunuch: "It seems that your mother-in-law is coming for the fourth time." Emperor: "What do you mean?" Eunuch: "I heard the empress shout: Oh, my mother, oh, my mother! ! ! "Emperor:" What about the fifth watch? " Eunuch: "You are playing chess with the empress." Emperor: "What do you mean?" Eunuch: "I heard the empress say: one more shot, one more shot!" !