PORTLAND (NEWS CENTER Maine) -- The Gronkowski clan surprised some kiddos at Barbara Bush Children's Hospital Tuesday, dropping off money at the hospital and visiting young patients.

Chris Gronkowski tweeted a picture of the family, including Rob Gronkowski, presenting $25,000 checks to Barara Bush Children's Hospital and Boston Children's Hospital.

Pictures released from Maine Medical Center show a Valentine's Day smooch for Rob, and it appears some kids learned how to Gronk spike, too.