KTRA-496-Uncensored-Leaked — I asked my teenage sister if she wanted to have sex. (Misaki Manatsu)

Lately, I can't help but find my little sister adorable... My sister has become a complete sexual object to me, and I desperately want to do something naughty with her! I playfully show my teenage sister a pornographic magazine, and... huh? She seems kind of excited. Maybe I have a chance! "Want to have sex with your big brother?" My sister is confused by her brother's perverted suggestion, but her teenage body is honest. Gradually, she starts to feel horny too...!?