Vyasa said: If I am to produce sons for my brother so unseasonably then let the ladies tolerate my ugliness. That will be to them a great penance.
व्यास उवाच यदि पुत्रः प्रदातव्यो मया भ्रातुरकालिकः। विरूपतां मे सहतां तयोरेतत् परं व्रतम्॥