WAAA-324 - I made my older sister a reverse bunny slave (...) for 3 days...! JULIA

Whether good or bad, my sister is kind to her younger brother and diligently tutors me, worried that I can't study. She says, "If you get a perfect score, I'll do anything for you," so I studied hard and... made her my exclusive reverse bunny slave (...)! At first, she reluctantly agreed, but when I ordered her to ride on my penis and have sex, she started shaking her hips excitedly! She gradually became more obedient and performed fellatio with her fully exposed J-cup breasts! For these 3 days while my parents are away, I indulged in sex with my lewd-bodied rabbit sister!