Hinako, who is worried about her small figure, is secretly dating and living together with the prince of the company, Rui. However, Hinako is depressed by the fact that she is not a good match for the perfect Rui. Then, Hinako hears a rumor that Rui likes big breasts. In order to become a girlfriend that Rui likes, Hinako decides to grow her small breasts! Hinako's small nipples are swollen, and she has become so lewd that she gets wet just by her clothes rubbing against her. Of course, Rui can't help but notice the change in his beloved girlfriend! "These lewd nipples are for me, right?" He rubs her hard nipples all over... It feels much better than touching them herself...!! Rui, her doting boyfriend, can't stop caressing her! Her pussy, which is wet with anticipation, is slowly loosened, and Rui pours all his love into her with his huge dick!