When the mating season comes, the Timberwolves go into heat. Unfortunately, the same also goes for every mare in Ponyville. Or in this case, the only mare at the edge of Ponyville. When she goes into the Everfree to collect Timberwolve bark clippings for Zecora, hidden in the bushes. She watches a Timberwolf pair, only, shes slightly turned on by it.

And after the females had left, all it took was a small break of a twig, and the male had sprung upon her. Both with lust in their eyes.