Sun Wukong
When Sun Wukong and his fellow pilgrims came to the region, they encountered an extremely hostile range of volcanic mountains that they could only pass if the volcanoes became inactive. Sun Wukong wanted to borrow her fan to subdue the Flaming Mountains, but she turned him down as the monkey had been on bad terms with her husband before. Sun Wukong, however, craftily transformed into a fly and flew into her mouth, down her throat, and into her soft belly.