Turning out in an unfamiliar pink kit to show their support for the charities Breast Cancer and CRY, tries from centre Mark Heywood and hooker Nicky Guymer gave the Seasiders the edge in the derby.
Tom 'Turbo' Lewis kicked a further 11 points to ensure the home team secured a well-deserved win against the Scarlets whose only response was a solitary penalty kick.
With Brynamman, who sit just below the Seasiders in the table, the next visitors to the Heywood Lane ground tomorrow (Saturday), Tenby will be looking to produce another high-flying performance to consolidate their position in second place.