Tanaka thinks he is only driving to a convenience store, but three busty senior coworkers are waiting with luggage for an overnight trip. At the beach, their H-, I-, and J-cup breasts bounce wildly and brush against him until his erection is impossible to hide. After drinks they tease him about whose breasts he likes best, then surprise him in the mixed outdoor bath with an endless rotation of titfucking. Back in the room, they suck his nipples, lick his armpits, massage him, and attack together. By morning they surround his erection again for another storm of titfucking sex, leaving him afraid he may never return to ordinary life.