Just as she mused to herself about her cock being a third arm, her arms began to tingle. She felt her fingers splay out, growing longer and longer. Her arms also began to grow, and she felt them pull themselves upwards. She no longer had any control over them!
As she reached higher, she realized the skin on her arms was beginning to turn brown. It darkened and hardened, becoming bark. She craned her neck as she felt her fingers split, then her arms, becoming multiple branches. They grew for what felt like forever, becoming a canopy above her, shading her from the sunlight. She felt bursts of pleasure as flowers came and went, and noticed apples quickly growing in. Her arms had become apple tree branches!
She tried to move them and found she was unable. She could, however, use her cock. So she sent her dog head up to investigate, though it was made difficult by the jolts of pleasure she got when her cock brushed against her leaves. Her dog head sniffed around, and found an apple. She bit into it, feeling a slight pluck of pain, and it tasted delicious! Not to mention the pleasure she got from the swallowed bits of apple being pushed down her urethra, into her stomach.
Just as she sniffed out another apple, she felt another part of her body tingle...