VEC-442 I was targeted by my wife's female friend and can't refuse internal ejaculation

"What? No one's home..." While his wife was visiting her parents with their child, Shinya's wife's friend Yuka came over to play. When Shinya told her that his wife had just gone on a visit and wouldn't be back for a while, Yuka slumped her shoulders dejectedly. "I thought I could finally see you after so long..." Yuka sighed wearily. Her beauty was too much for Shinya to ignore. "Would you like to come in?" A casual remark led to an unexpected incident...