I was targeted by my wife's female friend and I couldn't refuse to cum inside her

"Oh, Kazuya-san, it's been a while! Are you Rina there?...Huh? Are you home now? - So you won't be back for a while, right?" While his wife Rina was returning to her parents' house, his wife's friend Reiko came to visit. He said he came from Sendai to surprise his wife, but... "I never thought I was away... I wanted to talk slowly for the first time in a while," Kazuya sighs and tries to cheer up Reiko, who is at a loss. I invite her to my house to serve her tea...