Because Yuta had never had much contact with a pair of breasts as big as hers, it made him have some wild fantasies about them. If she let Yuta touch them, maybe he would stop thinking about them and be able to focus on studying! At first, Yuta refused, but after touching them, the incredibly soft, elastic feeling from Ayumi's breasts made the student unable to control himself. He wanted to go further! He wanted to see these breasts, suck, squeeze, fuck her breasts and pussy! And because she wanted Yuta to be able to focus on studying, Ayumi had to comply with him. And from then on, the two fucked each other from school to Ayumi's house. Ayumi also set a condition, however much he fucked her, he had to study that much...