Your girlfriend claps her hooflike hands together excitedly and literally squeals as you begin the change yourself. You can feel your ears expanding, and you assume it's just what happened to her, exactly how it felt when her own ears did the same. It's not painful, but it isn't exactly a pleasant experience. It's more... well, you're finding it difficult to find words to describe how this feels.
You watch your hands as they begin to shift, your fingers shortening, thickening as well - it's surreal, almost like it's not happening to you but you know it is.
"You're coming along wonderfully, darling," you can hear your girlfriend say as if she were miles away. You slowly bring your gaze to her and notice now that she's completely naked, her clothes having vanished entirely. Her breasts, now bared to you, are what take your attention immediately. They're smaller than they were before, but... there are... more of them. You have a difficult time wrapping your head around that fact - your girlfriend has three sets of breasts, one on top of the other. She doesn't seem to mind it.
And as you go along in your transformation into a pig, you find that you don't mind it either. And there's that euphoria that she described before. It DOES feel wonderful. An ecstatic feeling of wonder and awe rushes over you and the regret and fear you felt before melts in its presence. You feel a wide, dopey smile spread across your thickening jowls, and you sit back in contentment.
"Are..." you begin to say, your voice raspy like hers, but deeper, more gutteral. "Are we going all the way on this or is there a way to stop mid way? You know..."