She has definitely grown

"Morning, honey~" Sarah's voice was the first thing that Tom heard the next morning, even before he'd really been able to open his eyes and raise up to stretch. After yawning a few times, Tom looked over at his wife, and saw she was still in a completely non-humanoid slime shape. Not only that...she was definitely larger than she'd been when he went to sleep. "Notice anything different?" she asked, slipping closer to him and bumping into his shoulder with her gooey mass, like it was a normal kind of intimate touch.

The difference was significant, but it wasn't like she doubled in size. It was like she'd gone from being the size of a yoga ball to the size of a bean bag chair. "You had a growth spurt?"

A giggling sound came from the slime. "Yeah, you could say that. I think it was all your cum, honey." She moved even closer, starting to press her mass on top of him, pushing him back down into the bed, a small tendril moving inside his pajamas to start playing with his cock. "Speaking of...your wife is hungry, and you should give her breakfast." Sarah did indeed sound hungry, if not outright ravenous. There was something distinctly...inhuman about the way the sound vibrated out of her mass.

Tom got hard quickly, but still, he felt like he had to speak up. "I'm definitely happy to feed you, but do you think you could...look more like your old self? I like this look on you too, but it's nice when you have...curves." He didn't really know how to ask this without sounding insensitive.

Even without eyes, Sarah was able to give off the sense of rolling them at him. "It doesn't matter how I shape my body, it's all the same anyway." Still, she sighed and started changing her shape, the mass elongating and differentiating into arms and legs and a head, returning to a more humanoid shape. "There, is this better?"

He wasn't entirely sure how to answer the question. She definitely looked like her old self, or rather like how she'd been right after changing the day before, but...with one big different. "...you've gained some weight, love," he told her, poking at what was now her belly.

Rather than flat and taught, as it had been ever since Tom had used the coin to make his wife more attractive, there was a distinct chubbiness to Sarah's stomach now. It wasn't just there that had changed, either. Her arms and legs were thicker, her butt broader, her breasts larger, her cheeks fuller. It looked as if her human form had gained twenty pounds overnight.

Sarah looked down at herself, and for a moment Tom thought she might be upset for the crack about her weight. But instead, she just shrugged. "All that new slime had to go somewhere." Then she leaned down, face forming the expression of a predatory grin from the impressions in her slime membrane. "Plus, that means I've got more mass to pin you down now, so get ready~"