Had their grandson not stepped in, they would have continued to pay for another four years.

People reports.

College Student, 24, Pays Off Grandparents’ Mortgage by Saving Money Eating Microwave Pizza and Skipping Parties

The gift of a lifetime.

Stefun Darts – a Houston native, college students and founder of non-profit Caring Heart Youth – repaid his grandparents for everything they’ve done for him by gifting them with a $15,000 check and a trip to the Bahamas.

“I promised God in the second grade I would pay off you guys house and help you retire. A promise I would never break,” Darts, 24, wrote on Facebook. “The best and most beautiful things in the world cannot be seen, nor touched… but are felt by the heart.

“Even with this, I could never repay you for what you’ve done for me,” the San Jacinto College student said. “I sacrificed my teenage and early adulthood of not having fun for this moment. I couldn’t stand you going to work at night, some nights I didn’t even sleep knowing it shouldn’t be like this. Never have I wrote a check wanting this to be the first one. To all my friends that stood by me over these last 6 years I appreciate you.”