Paul Kennedy was swimming with his two granddaughters in the pool at their new house in Pennsylvania when a slow heart rate caused him to faint in the water. When 11-year-old Cassidy McHugh saw him floating face-down, she immediately called for her older sister, 14-year-old Madison McHugh, who jumped into the pool, carried him across and pulled him out. That day, the two sisters became heroes.

After pulling her grandfather out of the pool, Madison then instructed her mother in performing CPR, Fox News reports.

"We did the whole thing about two times and then he started to cough up water," Madison told Fox News. "I was scared and my hands were shaking but I wouldn't let myself freak out."

Although Madison had never performed CPR, she had watched a video on it for a babysitting course she took with her Girl Scouts troop, and she was able to put that knowledge to use to save her grandfather. When the paramedics arrived minutes later, they said that the girls were probably the reason why he survived.

"I'm emotional... I still get emotional over what they all did," says Kennedy.

He is now is recovering and looking forward to visiting his granddaughters more this summer.

Earlier this month, 13-year-old John Koobatian heroically saved his family's elderly black lab from drowning in a local pond. And in June, Australian teen Sam Porter brought a drowning woman to safety, marking his third time saving a life in three years.

Are you inspired by these amazing young heros? Tell us in the comments below or tweet @HuffPostTeen!

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  • Sam Porter

    19-year-old Sam Porter from Australia has saved an incredible <a href="http://www.huffingtonpost.com/2012/06/14/sam-porter-australian-tee_n_1596701.html" target="_hplink">three lives in three years</a>. Last month, he pulled a drowning woman to safety; last year, he pulled a woman out of a car wreck; in 2010, he jumped in front of a train to pull a suicidal teenager off the tracks. Porter is currently training to become a cop.

  • Graceann Rumer

    17-year-old Graceann Rumer put her driver's ed lessons into practice when her bus driver had a heart attack while driving and fell to the ground. <a href="http://www.huffingtonpost.com/2012/01/26/philadelphia-teen-gracean_n_1234395.html" target="_hplink">Rumer took over the steering wheel </a>of the bus, swerved away from oncoming traffic, and onto the side of the road. Her heroic actions saved more than three dozen passengers from what could have been a fatal accident.

  • Cody Decker and Luke Vaughn

    Michigan teens Cody Decker and Luke Vaughn were on vacation in Palm Coast, Florida when they saw a car crash into a pair of trees in front of their eyes. The vehicle was quickly engulfed in flames, but that didn't stop Decker and Vaughn from risking their own lives to <a href="http://www.huffingtonpost.com/2012/04/07/michigan-teenagers-cody-d_n_1408605.html" target="_hplink">pull the two passengers to safety</a>. (Both were treated for critical injuries, but survived.) "We're just two ordinary guys helping people out," <a href="http://www.clickondetroit.com/news/Michigan-teens-rescue-couple-from-burning-car-in-Florida/-/1719418/10276310/-/oyggguz/-/index.html" target="_hplink">Decker told ClickOnDetroit.com</a>.

  • Colby Dauenhauer

    <a href="http://www.huffingtonpost.com/2012/05/24/colby-dauenhauer-teen-survives-plane-crash-father-girlfriend_n_1542719.html" target="_hplink">Texas teen Colby Dauenhauer</a> was a passenger in the small plane his father was flying when the plane crashed and burst into flames. Although his father did not survive the crash, Colby was able to pull the two remaining passengers, his girlfriend and her father, to safety. Both are in critical condition.

  • Austin Smith

    Fifteen-year-old Austin Smith was working on a car with his grandfather when suddenly, the car collapsed, pinning his grandfather underneath. Adrenaline kicked in and Austin was able to lift the 2,000 pound car high enough for his grandfather to crawl out. "I was just so scared," <a href="http://www.huffingtonpost.com/2012/02/22/austin-smith-michigan-tee_n_1293877.html" target="_hplink">Smith told WDIV</a>. "I didn't know what to do."

  • Danny Manes and Gary Ramirez

    When 17-year-old Danny Manes noticed a suicidal-sounding status update from an acquaintance on Facebook, he<a href="http://www.huffingtonpost.com/2012/02/03/teens-save-life-using-fac_n_1253301.html" target="_hplink"> reached out through Facebook chat to help</a>. He asked his friend Gary Ramirez to get involved, as well. Together, they chatted with the teen for six hours, finally calling 911. Police arrived on the scene and helped the teen to safety. Together, Danny and Gary started <a href="http://www.huffingtonpost.com/2012/02/03/teens-save-life-using-fac_n_1253301.html" target="_hplink">"Hopeline for Teens," </a>an anonymous advice page on Tumblr for teens struggling with depression, bullying, sexuality, and other issues.

  • Meghan Vogel

    17-year-old runner Meghan Vogel was in last place in the 3,200-meter run when she caught up to Arden McMath, who was showing serious signs of exhaustion. Rather than sprinting past McMath to avoid coming in last, Vogel put her arm around her shoulders and <a href="http://www.huffingtonpost.com/huff-wires/20120605/us-runner-s-sportsmanship/ " target="_hplink">helped the ailing runner </a>make the last 30 meters to the finish line. Her good sportsmanship made news across the country.

  • Danae Rodriguez

    In December, Danae Rodriguez and her family were in a car accident that left her father seriously injured. Rodriguez helped her father until the paramedics arrived at the scene and was an integral part of his recovery process. This spring, the father-daughter pair <a href="http://www.fergusfallsjournal.com/2012/04/30/daughter-saves-dad-takes-him-to-ffhs-prom/" target="_hplink">attended Rodriguez's senior prom</a> together.