Button Mash has turned 18 now and he's more than desperated to lose his virginity. Especially since Sweetie Bell and the CMC (who also turned 18) have grown really big breasts. While the CMC, as well the others mares were going to spend the summer vacation in the BBBR (Big Breasts Beach Resort), Button decides to spend summer vacation alone playing video games. But when he went to the GameStable to buy the new Filly Fantasy XV, he found a mysterious game box with a note that says 'DON'T play it' and bought it out of curiousity. While he didn't know is that this game could give him the best summer vacation of his life.