HUNTA-004 I can't speak properly because I have no connection with women. On the other hand, the super-popular sister is having a lot of fun with her friends at her birthday party! Moreover, only super cute girls. What's more, I'm jealous o

Contrary to me, who can't talk to women properly, my super popular sister brings a lot of super cute friends to her birthday party and holds a cosplay party! I'm jealous and I can't help but pretend to have something to do with my sister and when I show up at a birthday party, I get excited by the sexy cosplay appearance and defenseless panchira than I imagined and immediately erection! The girls who saw it started to get sick ...