SCPX-551 — What was supposed to be just a test of kissing... turned into a heated exchange, and my sister-in-law was undoubtedly in heat.

Unstoppable, uncontrollable...the sexual urges escalate. What was supposed to be just a test of kissing leads to sudden infidelity, and before you know it, tongues are intertwined and lips are being sucked...and things have gotten serious. Once you notice the erection, you can't help but touch it...and once you start sucking it, you can't help but fuck it..."I've had sex with your younger brother..."