VEC-423 I was targeted by my wife's female friend and can't refuse internal ejaculation

While my wife was visiting her parents with our child, a friend of hers named Ayane came to visit. She had come all the way from Hokkaido to surprise my wife, but... my wife wasn't home, so the surprise visit plan fell through. 'I thought I'd finally get to see you after all these years... and yet, you're not here... What a shame.' Ayane sighed deeply, her dejected figure filled with melancholy. Kasahiro, thinking he was doing the right thing, invited Ayane into the house...