VENU-511 - Ovulation day, I can't hold it anymore... My stepmother is masturbating in front of me

The Attacker's best-of I bought recently mostly features her in submissive roles, so it's nice to see her taking the lead in this era. However, while there's a premise, there's basically no story. Maybe it's the 80-minute runtime constraint, but there's no pacing either. Personally, I can't rate it very highly. It would have been better if the story was about her being a prude who only gets horny around ovulation, then feeling intense self-loathing for her actions afterward.