Two unpopular guys go to a hot spring and encounter a group of female college students. The girls are too open-minded on their graduation trip, and they tease us, who are not used to being with girls, by wearing no underwear or bra under their yukata robes. They are curious about our erect dicks, and when they find themselves alone, they start sucking on them. There is no other way but to fuck them, and it feels so good that they cum inside us!