A rugged 'bear' body type

I look down at my humanoid form. My chest, back and legs budge with burley muscles and are covered in hair. Below the belt is a pleasant surprise, my cock has grown to monstrous proportions its head dangling well below the ends of my boxers.

I slowly look her body up and down appraising her. "Like what you see Nadya?" I growl, my voice possessing a rich depth that was absent before the night’s events.

Nadya grins "Well you certainly look impressive, but can you fight well?" She twirls a stick between her fingers before using it to draw a wide circle on the ground. She steps back and gestures toward the opposite side with of the circle with the stick. “Come on, let's see what you've got."

She takes a casual dismissive stance, "Rules are simple, we go until someone leaves the circle, someone gives up or -"she winks"- we both feel satisfied."

I roll my shoulders, the muscles in my back feel larger and hum with energy. "You're on."

I charge Nadya, my legs provide me an inhuman burst of power. I should have the absolute advantage.

At the last minute, Nadya smirks as she side steps and grabs my wrist. Before I can react, I am hurdling towards, then slam into the earth. For a brief moment I am stunned, luckily my new form is quite hardy and start to recover. However, Nadya is already on top of me. She moves like the wind, pinning me to the ground with a swift mount, her legs momentarily trapping me.

"Strength isn't everything, ready to surrender?"