"I'm...I'm all yours..." You can't help but utter these words, and you can't believe you just said them. Only Alice is your concern and desire. The rest of the world fades away, forgotten. This strange creature, the essence of what you've been trying to escape, has called out to you as a silent siren and heedless of the consequences, you've answered.
Alice smiles down at you, she leans forward, her bunny nose pressing lightly against your own human one. Pausing briefly, Alice inhales before abruptly planting a passionate kiss on your surprised face. Her lips are warm, though they taste of latex. As you finally relax in the kiss, your eyes open wide as Alice exhales into you. Her lips locked to yours, you can't break away. The air is forced down your throat and into your belly.
You struggle, but the ropes and chair hold you tight. An unbearable pressure begins to build in your stomach. Then the oddest sensation of it swell outward. You can feel it push up your shirt and then the bare flesh prickles against the cool air. Alice runs a rubbery paw over your swelled belly. A moan escapes you, even as Alice leans back, breath exhausted.
"One more, I think." Alice grins at you before taking another large breath. Once more, she leans in close to you. Her breasts and belly, slightly larger with air, press against your own changing body. Alice kisses you again. This time you are ready for the intake of air, and gladly accept it. The feeling of fullness as you've never felt it before is strangely pleasant. Certainly, being even more full would feel better, right? Reasoned thought is quickly slipping away from you as this new pleasure is all you desire.
Alice's breath flows into you, filling your already taut belly. The pressure is immense, you can't imagine how it hasn't burst your belly yet. A glimmer of worry crosses your mind as more air fills you up. You guess your belly is sticking out a good six inches.
Lips locked in a swelling kiss, you feel the air within your belly, unable to make your belly any larger rush out of it and into your back and posterior. The pressure comes to a small point, your tailbone, and with an audible pop, you feel what you can only imagine is a tail. The pressure lessens quickly as it fills up this new appendage.
Alice pulls back from her kiss, "Mmmm...wonderful!" She leans over to see her handiwork, and giggles. "What a lovely tail you've grown."