My sister is my brother's mouth-pussy slave on a daily basis. Whenever he wants to cum, he cums, of course in my sister's mouth and pussy... On this day, when their parents are out, he forcibly shoves his erect, hard cock deep into my sister's throat, dripping sticky saliva and sucking my balls, making her teary-eyed. When he is told to lick her dirty asshole, his masochistic tendencies are awakened, and he sharpens his tongue and thrusts it into her anus. The endless hell of deep throating gradually turns into pleasure, and today he is impregnated by his own brother.