Montpellier made it three from three in Pool 3 of the Amlin Challenge Cup as they beat compatriots Bourgoin 39 - 14 at the Stade Yves du Manoir.
European new-boy Martin Bustos Moyano scored 21 points as the home side dominated the all-French affair.
After impressive victories away to Exeter Chiefs and at home to Newcastle Falcons in the opening two rounds of the competition Montpellier will be looking to continue their run of form and make it to the quarter final stage for the first time since 2007/08.
Bustos Moyano opened the scoring with an early penalty before Nemani Nasiganiyavi crossed for the first try of the evening for Bourgoin, fly-half Matias Viazzo added the conversion.
Santiago Fernandez then touched down for the home side and Bustos Moyano kicked the extra two points to regain the lead for Montpellier.
In a close opening half Bourgoin fought they way back in front with a penalty try after 25 minutes.
Six points from the boot of Argentina fly-half Bustos Moyano gave Montpellier a 16-14 lead at the break.
The second half was a different affair as Montpellier showed their dominance, crossing 23 unawanserwed points.
Bustos Moyano scored a further 11 points including a try of his own, with Marc Giraud and Joan Caudullo also touching down.