Justin Deierling took advantage of a routine fire drill at Greentown Elementary School to get down on one knee and propose to Megan, who was organising a roll call of all her students.
Initially seen looking nervous as he prepares the stunt at the Fire Station, Justin arrives at the school and walks over to Megan.
His colleague, rolling back the side of the fire truck, reveals a banner saying: 'Miss Z - Will you marry me? I love you, Justin.'
Megan is clearly shocked as she stares open mouthed at her boyfriend, before letting him put the engagement ring on her finger.
The teacher's students are then seen giving the couple a heartfelt round of applause, before giving them some congratulation cards.
Meanwhile the other strapping firefighters are seen giving out sweets to the children.
Could this pair BE any more perfect?