Pregnant Spider Woman

My sister is a silkworm that can spin colorful silk, and I am a spider that can only spin poisonous silk. On the eve of my ascension, my sister rescued the princess who accidentally fell off the cliff, but she didn't want the princess to become greedy after seeing the colorful silk, and ordered someone to kill her sister. The princess looked disdainful: "I am the future empress, not to mention just colorful. Silk, everything in this world is mine!" The next day, I successfully attracted her father with a dance on silk. The emperor has a weak relationship with his children, but we, the spider girl, can have many children at a time and is so favored that the princess does not know that her good days are coming to an end soon, and her status will plummet...