Type B, Hot And Hot Sister in law

As usual, Kyung-soo said that he would stay overnight at his brother Min-soo and sister-in-law Young-hee’s house. Since Young-hee was busy with work and Min-soo was also out taking care of work, Kyung-soo was home alone. Unexpectedly, Young-hee’s sister Ga-hee came to the house. In the situation where the two were left alone in the house, to ease the awkwardness, Ga-hee suggested a beer. While the two were drinking beer, Ga-hee got drunk and accidentally had sex with Kyung-soo. Actually, Ga-hee had planned to come when Min-soo was home alone to seduce her brother-in-law, but now the situation had changed.