MASM-020 Defeated by my bratty niece shouting 'zakozakosaa~ko' at me! The story of how I was made into an M by reverse milking 仲川そら

I ended up taking care of my niece Sorachan for a week. Even though I made her dinner, she said things like 'I don't want to eat! Order takeout and lend me your credit card!' She's just an insolent little brat. I thought about teaching her a lesson about talking back to adults... but instead, I got pushed down and made to finish inside her while she rode on top of me!? 'If Dad finds out, uncle is gonna get killed, w' Now I can't go against this kid anymore... The daily hell of having my sperm milked began.