Slender and well-proportioned Yui volunteered for anal training. Well, actually, she was the one who initiated it herself. Despite that, she strongly pushes back when I go for her breasts, yet gives surprisingly positive reactions. A little touch and she says things like "I don't hate it," quickly showing interest. When I suck her nipples, all I hear are moans—her pussy must already be dripping wet. Sliding her panties aside, I notice she's completely shaved, and whispering dirty remarks about her bare pussy in her ear makes her shiver uncontrollably. Her submissive side is clearly showing. First, I smell her anus to help her get accustomed to the sensation. When I insert my tongue into her ass, her hip movements freeze instantly. While she's distracted with fingers in her pussy, I teasingly tickle her anus. Good—now the foundation is set! When should I insert a finger into her ass? Now's the time! After creampie ejaculation, as the semen starts dripping out, I work some of it into her anus too.