Deciding to Call: Undyne x Male Reader (Lemons Later)

Grillby's

You, Papyrus, and Undyne walk to Grillby's. The warm storefront looks quite inviting as opposed to the biting cold weather. You four walk in, and Grillby greets Sans. "Heya, Grillbz. What would you guys like?" You ordered your favorite food. Sans got ketchup. Papyrus ordered spaghetti with bolognese sauce. Undyne got sushi. You raised an eyebrow when she did so. "Isn't that cannibalism?" She burst out laughing. "Of course not! I ordered salmon!" You shrugged, wondering what the difference was. Your food came a couple minutes later. "Thank you sir," you said. As you began to eat, Papyrus began rambling about talking flowers. Your heart skipped a beat. Sans and Undyne looked at him. "Don't you mean Echo Flowers?" Undyne asked. You finally spoke up. "Does he call himself Flowey?" Papyrus nodded. "Yeah. I think I know him from somewhere but I don't know where." Undyne spoke up. "Hate to interrupt but your food is getting cold!" You snapped back to the present and ate your food. As you were finishing your last bites, Sans said, "Well, I gotta get back to sellin' hot dogs. See you around." He left, and Papyrus got up. "I have to go make more puzzles. Bye for now." That left you and Undyne. "Well, I'm glad you didn't kill me. Thanks." Undyne replied, "Well, thank Sans for making me give you a chance. Want to come to my house? I see you don't have a place to stay on your journey." You were surprised. "Are you trying to trick me or some-" You saw the enthusiastic seriousness in her face. "Sure. I'd appreciate it." She smiled as she got up and left with you. Over your shoulder, you hear, "You didn't even may your taaab! Dammit she always does that."