They'll go head to head in the Leinster Minor Football Championship tomorrow.
The rivalry is fierce in St. Mary's Academy CBS in Carlow heading into the weekend.
Four members of the same class will line out for Laois and Carlow in the Leinster Minor Football Quarter Final.
O'Moore teens Conor Heffernan and Conor Kelly will go head-to-head with Carlow's Ronan Quinlan and Eoin Byrne.
Killeshin clubman Conor Heffernan says they have to keep the rivalry under control in the classroom, but has no doubt about who'll win on the day:
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