A sudden tension in his core, followed soon in his chest then back. The series of involuntary flexing caused an expansion to WulfBane's muscles that didn't lose their size when he relaxed. A few more surges of power left the wolf twice as tall as he was prior and his physic several times grander. None would blame him for admiring his newly gifted bulk.

---

Animated gif version of http://www.furaffinity.net/view/33121786/

Muscle growth YCH animation by  mimic12455

Find his posting of the gif form here: http://www.furaffinity.net/view/32173814/