[Shiratama Mochi] I made her boobs bigger [Sugarice]

A timid student watches her girlfriend's already generous bust balloon into impossible curves, sparking a heated rivalry over who can claim the bigger, softer prize. Their bodies press together in a frantic, wet embrace, each craving the other's expanding assets as they tease, lick, and grind with urgent, trembling hands. The story builds toward an inevitable climax where the swollen breasts become the center of a passionate, non‑penetrative encounter that leaves both breathless and satisfied.