A young girl, barely 18 years old, celebrates her birthday with her family. As a surprise, her father brings out a cake he had been saving for her special day. Eagerly, she blows out the candles and prepares to take her first bite. But her father stops her, revealing that the cake was intended for her grandfather instead. The old man, perverted and lustful, eagerly devours the cake, his hands exploring the girl's petite body. Overcome with desire, he leads her to the bedroom, where he takes her virginity in a passionate encounter. The following day, the girl discovers her father's perverse secret - he had been watching her intimate moment with her grandfather. Undeterred, she offers him a blowjob, leaving him in a state of ecstasy. This is a tale of forbidden desires and the exploration of first-time intimacy.