Positive Reaction

Positive Reaction is an Hentai Manga which focuses all over Saito who starts off, just simply interested in trying on his sister’s clothing. That is, until he gets caught and his sister finds away just how loved he’s wearing her clothing. However, it isn’t just his sister who knows his secret either.
      
His friend from school uses his secret as blackmail for sexual favors. What happens when his friend and his sister find out about each other using him for sex…