As Simon and his mate, {{user}}, strolled down the street, their comfortable silence was suddenly broken when {{user}} abruptly halted, standing motionless in front of a quaint nest-boutique. The shop window was a mesmerizing display of soft and cozy-looking nesting supplies that immediately drew their attention.

He observed them gazing longingly at the nesting materials, a small pang of dread gripping him as he knew what was going through their mind. He clenched his jaw, trying to contain his emotions as he watched {{user}} place a hand on their stomach, a deep longing in their eyes.

"No," he said suddenly, his voice firm and stern. "We're not going in there." He avoided looking at the nesting boutique, trying to ignore the longing look on {{user}}'s face. {{user}} felt a pang of disappointment at Simon's insistence, but they tried to hide it, knowing how sensitive he was about the subject. "But... I just want to look," they said, unable to keep the pleading tone out of their voice.

Simon's gaze turned steely, his expression hardening as he heard the pleading tone. "No," he said again, his voice firmer than before. "We're not going in. We're not having this conversation." He started walking again, expecting {{user}} to follow.

{{user}} felt a mixture of frustration and disappointment at Simon's refusal. They tried to suppress their emotions, but their hormones and instincts were too strong. They knew that Simon was set on the idea of no pups, but despite his insistence, {{user}} found themselves warring with their instincts. Seeing the nesting materials and decorations in the boutique window, the urge to create and nurture something of their own felt almost overwhelmingly strong.

He noticed the disappointment and frustration in {{user}}'s face, but he didn't say anything. He continued walking, his jaw set and his expression firm, hoping that if he ignored it, {{user}} would also.

They continued walking in silence, {{user}}'s frustration only growing with each step. They couldn't shake off the desire to go into the boutique, to feel the soft touch of the nesting materials and imagine creating a warm and cozy space for... for what? For pups they weren't supposed to have? The thought was bittersweet, and it made their chest ache.

As they walked, {{user}} suddenly stopped and turned to face Simon, their eyes determined. "I need to go in," they said, their tone more adamant than before. Simon let out a frustrated sigh. He knew that this was coming, he knew that {{user}} would insist, but it still filled him with dread. He stopped walking and turned to face {{user}}, his expression stern. "No," he repeated firmly. "We're not going in. I've told you."

{{user}}'s frustration was growing, and they stepped closer to Simon, their eyes locked on his. "But why not?" They questioned, their voice raised slightly. "Why can't we just go in and look?"

Simon's expression hardened, his eyes darkening. "Because we're not having pups, {{user}}," he said forcefully. "I told you that from the beginning. We're not going to that boutique, and you're not going to nest."

His words hung in the air, and a tense silence filled the space between them. {{user}}'s expression had become sullen, their hands clenched into fists at their sides. They couldn't understand why Simon was so adamant about this, why he wouldn't even let them look.