During the training camp, a busty college student from the swimming team has her swimsuit removed and receives relentless nipple stimulation from behind, causing her to squirm as she is persistently teased on the sensitive tips of her breasts. This leads to her experiencing her first beach-clit ejaculation, unable to control herself! When her aroused vagina is intensely penetrated, is she willingly accepting a creampie!? ~Yui's Story~