Breasts Are My Favorite Things in the World! Vol. 3 (manga)

"Bosom" friends Chiaki and Hana continue to grow into their one-of-a-kind friendship. With each passing day (and every secret fondling session), the two learn more about each other, and their relationship flourishes. Yet uncertainty haunts Hana's thoughts--what if Chiaki finds an even more satisfying set of breasts?! Luckily for Hana, 'tis the season for boob watching at the pool--the ideal time to investigate what exactly Chiaki looks for in a perfect pair...!