Alice shuddered as she felt Jim's warm, wet lips on her nozzle. It was sensuous. That was nothing compared to when his breath suddenly started flowing into her. She didn't know how, but it felt like she was hollow. Like a balloon or a pool-toy. The warm air was filling into an empty balloon sac where her middle organs should have been. The warm air felt so good that Alice quickly forgot her questions and thought only of the air filling her up.
Pressure began to build up in the oddest of places, her bottom. The air swelled her lump of a balloon. With each breath of air Jim supplied to her, her 'tail' grew larger and more taut. Then, with a loud pop, it formed into a shape to better accommodate the air.
Jim paused and gently pulled Alice to turn around so he could see what had happened. Alice easily obliged, eager to see what her lump had become. Jim's smile widened as he saw the most cute fox tail. He was fairly sure it was a fox tail. Though it was a light pink everywhere except for the white tip. The tail had a slight curve to it so it didn't stick out straight. It was, however, very taut and behaved like a rigid balloon.
Alice, very much into this now, giggled. A fox! She was becoming a fox! "Fill me up more Jim!" Alice moaned, yearning to feel his warm breath inside her again, filling her up like a balloon. She loved the feel of swelling, it was sensuous and exciting.
Jim, likewise, was lost in the overpowering magic wrought on them by the donkey pool-toys they'd touched earlier. He nodded and again started to blow into Alice's nozzle.
After a few breathes, Jim felt Alice's cool belly pressing against his nose. He looked cross-eyed at it. Looking again, Jim realized, that he was blowing up Alice's belly. She now had a slight bulge. Like she had gained a number of new pounds. Alice's eyes were fluttering, she was obviously enjoying this, so Jim kept at it.
Jim soon blew Alice's belly up to look very pregnant. Here he stopped and plugged the nozzle up. Alice was rubbing her swelled belly. Once she realized Jim had stopped, she looked down at him with a smile. "Oh, Jim! This feels so amazing! I feel so full, but I want more in me!"
"You...you look great, Alice." He stammered, but he really did mean it. He looked over her body and drank in her gorgeous body. A comically inflated pink fox tail, a nozzle on her belly. Jim noticed that around the nozzle, Alice's skin had turned a shiny white that seemed to be spreading.