Whether good or bad, my sister is a meddling type. She's concerned that I can't study well and enthusiastically tutors me at home. 'If you get full marks, I'll do anything for you,' she says, so I studied hard... and ended up with a reverse bunny slave just for me! At first, she only complained, but when she straddled my cock and received sex orders, she bounced her hips and came over and over! She became more and more obedient, serving me with her bare huge tits! For these three days while our parents are away, the roles and exposure have reversed, and I'm having sex non-stop with my rabbit sister!
