Sarina-chan came to visit her relatives' house for the first time in a while. She teased her two male cousins by showing them her miniskirt and breasts. One day, she witnessed her sister having sex with her cousin in the bathroom and got excited. She couldn't stop feeling itchy, so she invited the two cousins to the bathroom by showing them her panties. The cousins, who had been holding back for a long time, were overcome with sexual desire at Sarina-chan's erotically grown body! Two erect cocks crawled around Sarina-chan's body and thrust into her, and Sarina-chan was so excited that she was melting. She took one in her mouth and the other in her pussy, and experienced her first threesome in the bathroom.