T38-051 - Sun-tanned nieces from the countryside visiting their uncle

Close sisters who came to their favorite uncle's house in the city from the countryside during summer vacation. The older sister 'Ao', a sexually curious 'masegaki', and the younger sister 'Kina', who is naive, gentle, and clingy. The uncle is bewildered by awkward questions and flustered by glimpses of underwear. They tease and prank the uncle when the aunt is away. Losing themselves in their sweaty, sun-tanned bodies, their rationality collapses...