Go knock up her sisters

Her look of frustration and bewilderment melts into one of knowing as an enormous grin peels across your face. Just to make sure you realize what she wants from you she erases the stick figures on her map and redraws them at your camp, making sure to say their names as often as possible. Before you go she gives you her now cum stained skirt to take with you, presumably as proof of your union.

Filled with a new sense of purpose you commit as much of her dirt map to memory as you are able before heading out in the direction of these fresh, fertile, goblin girls.