[Papyrus nods with relief, despite his mild amusement that of course Sans would vote for the lazier option. He doesn't protest or shift away at Sans's approach, either.]

Unless they got sneakier. [It's a more suspicious sentiment than Papyrus usually shares, especially with his brother, but even as he says it something's continuing to relax in his shoulders. Internal fans don't go silent, but they're quieter, whirring along with his thoughts and worries.] You seem... You're sure. [It's not a question, even if it should be.] So it's something else... That convinced you to want a really cool yard.