MIAE-106 Rika Mari, a tsundere younger sister who loves and caresses my erect dick in the morning like a pet, but has no interest in me at all.

My brother is annoying and creepy and I have no interest in him, but his cock that gets erect in the morning is so cute that I fell in love with him! - ? - My sister, who decided to make my morning erection a pet, comes to see me every morning and rubs my cheek, chews my glans, and uses my vagina as a house to penetrate me! - My brother is a nuisance, so he has a snarky attitude, but his morning erection is so cute that I can't resist it! - A complicated love triangle incest between brother, sister and morning erection!