Lustful wife fucks her husband's friend while the husband is away

Yayoi Miuki, a fragile and horny wife, often masturbates at home alone because her physically weak husband cannot satisfy her high needs. Today her husband brought home a foreign colleague and asked to stay for a few days. Seeing that this guy was big and strong, she invited him to have sex with her. The guy was so fat that it was hard for the other guy to refuse. The two fell in love with each other, fucking each other and forgetting the days and months that followed..