Kanon who is curious about sexual things, secretly touches her sleeping brother's penis and becomes an outlet for his sexual desires. Although she is reluctant, she gets aroused by fingering and cunnilingus and is unable to refuse her brother's request to "just insert the tip", and she accepts. It feels so good that Kanon up riding him and inserts him all the way. A story of incest between a brother and sister who know in their heads that they shouldn't get off, but whose bodies crave stimulation. *This work is a sequel to "A life that is just short of incest with a sister who lets her insert the tip up to 3cm". This is an excerpt from "Kanone" (product number: dvaj00429).