Multiple cats sharing a litter box??

🖤S

Tomorrow is the start of our "cousin" kitty sleep over for a week or two while her family gets settled into a new home (they are moving from out of state and the place they are staying until they find an apartment of their own can't have cats due to allergies and dogs) anyways it's just hit me that maybe they need their own litter boxes?? Or can they share one? I keep a VERY clean litter box if that makes a difference 🤔

We are a 1 cat household so I really don't know these things 🤷‍♀️

(Picture of my girl.. cause I'm annoying and obsessed with her) 😅