This is the moment an adorable baby girl roars with laughter as her auntie reads her a book about a cartoon hippo.

The cute scene was filmed at the baby’s parents’ house in the town of Quemu Quemu in the central Argentine province of La Pampa and the footage was widely shared by local media this week.

The video, which has reportedly gone viral on social networks, shows Aunt Guadalupe, 21, reading ‘Tincho the Hippopotamus’ to her seven-month-old niece Francisca.

In the clip, little Francisca shows off her gummy smile as she roars with laughter at the reading.

Guadalupe said the video was filmed while the baby’s mother was busy cooking in the kitchen.

She told local media: “I went to visit Francisca and to entertain her I started to read ‘Tincho the Hippopotamus’ to her. Something caught her eye because she started to laugh out loud. She was like that for about 10 minutes.

“She is a super nice baby. She is always laughing. She is my older sister’s only daughter.”

Guadalupe, who owns a pastry business, said she has nine other nieces and nephews, but they all live far away.

The other children, aged between two and seven years old, all consider Guadalupe their favourite aunt.

She said: “I am the only aunt who does not have children so they take advantage of me. I just love having fun with them. I have a lot of patience with them.

“When they smile back at you, that moment is magical.”