A visit to her grandparents takes an unexpected turn for a young woman when she finds her grandfather half-naked and thirsty for an unconventional kind of relief. Feeling sympathy, she decides to fulfill his request and urinates into his mouth, with the old man eagerly swallowing every drop. The racy session continues with her granddaughter taking off her clothes, now completely naked as she pleasures her grandfather.
However, the arrival of her other grandfather interrupts their intimate moment. But instead of stopping, she invites him to join in, stripping him down and laying him beside the first grandfather. She then proceeds to urinate, alternating between their two mouths, until she can no longer release any more.