Verse 23

विलासभासनामानौ वृद्धिमाययतुः क्रमात् ।तौ पित्रोः पल्लवे दीर्घे लतापादपयोरिव

In plain words

The two, named Vilāsa and Bhāsa, grew by degrees to fullness -- [offspring] of their two fathers, like the two long shoots of a creeper and of a tree.