I'm going to stay the night at my brother's house... but my brother is out and I'm alone with my sister-in-law!! With this rare chance, I want to incestuously sleep with my brother's wife, whom I've always admired!! With a very intense kiss that entangles tongues, I have secret sex with my brother's wife for one night only!! The temptation gradually becomes more and more extreme, and my frustrated sister-in-law falls!!