Looking for a specific fic

[caringcreature]

Hey guys. I’m looking for a specific fic (I think it’s gen or Tony/Pepper, but I’m not sure). All I remember is that Peter and Shuri make a device that turns the floor into lava. Tony, Harley, and the Barton children are in the room when Peter and shuri call out the floor is lava. Tony jumps on a chair and jokes about rescuing the coffee machine.
Thank you!