While on vacation, you get a surprise invitation to your sister in laws room. Not thinking anything of it, you walk inside and find her in nothing but a skimpy robe. She acts flustered at first, but slowly starts to talk to you about something you both have in common: ever since your wife's pregnancy, no one seems to pay much attention to the two of you. Your sex life MUST be going downhill, right? It's only natural that she puts your needs on pause. Plus, her body isn't what it used to be anymore. Sure, her tits are big for now, but they'll start sagging before you know it. Her previously toned, fit body is just... different now. That's not a bad thing - that's just biology. But you're going to find yourself missing your sexy, high-libido wife, and she'll never be that for you again. I understand that this is a little forward. it's a little taboo to want to cheat on your wife, especially now that she's just had the baby and everything... but your wife's little sis is making some convincing points, isn't she? She throat fucks herself in front of you with a dildo, encouraging you to jerk off while she shows you exactly why she's so much better than your wife now, her sex drive and her body still fully intact. Besides, if you WERE to cheat on your wife with someone, isn't it better to do it with someone who resembles your wife in her prime rather than some stranger? She keeps encouraging you to jerk off while she masturbates and degrades your wife, and once you cum on her face she tells you that if the post-nut hasn't changed your mind about cheating, her door is open for you anytime.