The SCP Foundation is purely fictional. It's a collection of imaginative and often creepy stories and characters that are made up for entertainment purposes and have no basis in reality.
What makes it interesting is the potential for discovery within the story. Maybe it reveals a secret family recipe for the sauce or a special way of kneading the dough that gives the pizza its unique quality. It could also be about the relationship between the pizza place and the community. For example, how they became a local favorite by constantly improving their pizza. All these aspects, whether it's the food itself, the people making it, or the community it serves, make the 'good pizza great pizza story' a fascinating one.
The in - game decor might change to a more Valentine - themed one. Like having hearts and cupids around the pizza place. Also, there could be special customer requests related to Valentine's, such as writing love messages on the pizza boxes.