"It looked like it might rain," he explained... as if a kind gesture needed any explanation. "I wasn't sure if you'd make it back before then, so I wanted to make sure you'd have somewhere warm and cozy to be."

Honestly, Silvio could probably tell if it was going to rain better than Simon could with that inhuman sense of smell (that Simon knew nothing about at this point!). Simon knew he didn't need any excuse if he wanted to be close to Silvio. All he had to do was ask. But this felt more organic. Just snuggling together by the fire. And yes, Simon did wiggle just a little closer when Silvio dropped that arm around him.