John squirms over onto his knees and straddles Ianto, lifts a hand to snag up the one Ianto isn't holding onto his collar with and encourages him to slide it under his t-shirt -- over the warm planes of his stomach.

"Well you are a researcher," he points out. "I'm hoping this will be a very scientific study. You'll need a control set to compare to, and we'll need to repeat the experiment a few times to make sure it's good -- possibly in a few different places to rule out any environmental factors."

The only sure way to know if John Sheppard is truly hot, of course. Hope you're taking this seriously, Ianto.