MIDE-670 Found out his girlfriend is a porn star

Discovered that his girlfriend is a porn star Shoko Takahashi: This guy has a lover and today his lover is going on a trip with his family for a few days. At this time, he discovered that his lover's older sister was still at home, Shoko Takahashi. Shoko Takahashi was a porn actress and was discovered by him. Right after that, this guy approached the older sister, solicited, flirted, and finally succeeded. The two of them had sex and even recorded a clip to have something to watch. Does that poor girl know that she is being cuckolded? Please watch along to see the ending!!!