HUNTA-064 My shut-in room unexpectedly turned into a panty & cleavage paradise! While I was playing TV games, my noisy little sister and her friends suddenly barged into my room...

In my room, where I'm a shut-in, there's a large TV and lots of games for me to get obsessed with. But when my sister's friend found out about this, she came asking if she could play the games! It was super annoying, but since she was cute, I lent her some. Then she kept flashing her panties and cleavage without any guard, and I couldn't help but stare, ending up with a full boner! And when I thought that was bad enough...