Akari and Emily are two college students who belong to a travel club and are famous for their big breasts. Their classmates, who want to see their big breasts, invite them on a trip to a hot spring... They get very excited when their big breasts overflow from their bath towels in a mixed-bath hot spring! They are deceived by the man's skillful talk and reveal their voluptuous big breasts! When he grabs them Shizuka, their sensitive nipples become erect! The slutty college girls end their trip with a huge orgy!