HOUSTON -

From the concerts to the calf-roping challenge, there are all sorts of activities happening at the Houston Livestock Show and Rodeo this week.

Among them is a competition in Reliant Center that can get pretty heated between the youngest of rodeo-goers. 

Nine-year-old Eli Arp from Kilgore, Texas, has been training his lamb for the 4-H fine wool cross competition for the past six months. His lamb weighs about 150 pounds, much bigger than Eli, but he knows how to handle him.

Toughness is a necessity, since he's competing against about 60 other 4-H kids, including his older sister, 11-year-old Olivia Arp, who enjoys competing against her little brother. 

"Because I get to beat him all the time," Olivia said.

While she may sound confident, she admits showing her lamb can be a bit terrifying.

"I mean, the judge is always staring at you and you have to stare back if you want to sell," Olivia said.

Whether or not they sell, the siblings will both have to part with their animals, sending them to, well, you know where. Olivia doesn't seem to mind. 

"My lamb just isn't as powerful as when we left," Olivia said. She says she has three more at home.