[Fuyuno Mikan] I Can't Go Against My Little Sister Who Turned Giant [Full Color]

Suzu-chan discovers she can enlarge herself into a towering giantess and immediately uses that power to settle an old score, pinning her naked older brother between her soft soles until he cums from the footjob, then roping him to a playground pole in the middle of a sunny park. Spreading her plump thighs wide over her captive, she lowers herself down and swallows him entirely with her pussy, grinding and milking the tiny man until he's reduced to nothing but her toy, drenched and utterly defeated. The sweet-faced little sister closes with a loving smile and a promise to play with him every single day, sealing her big brother's fate as her permanent pet.