HUNTC-473 Amazing... I want to suck on it... My morning boner made my sister-in-law horny, and she immediately measured it! No matter how many times I came, she sucked me dry with relentless vacuum fellatio!

A brother-in-law living with his older brother and sister-in-law. One morning, the sister-in-law tried to wake him up by lifting the blanket, only to see a bulge in his crotch! What is that? Could it be... morning wood? Unlike men, the sister-in-law who doesn't know about morning wood can't stop her heart from racing at the sight of this shocking bulge! I saw something I shouldn't have… that sense of taboo gradually turned into a lewd feeling, and before I knew it, I was sucking his dick through his pants! Please don't wake up! I thought as I got lost in the blowjob. My stepbrother finally felt something strange in his crotch and woke up in surprise! But seeing his sister-in-law's lustful expression for the first time blew away all reason, and they plunged headlong into sex. No one is to blame. It was just a morning erection that destroyed both of their rationality.