Easy, escalate to a boss who's only focus is making sure you both get your work done. I'm also sure trades and bribes and a informal form of corporate currency changes hands

"I'll purposefully and intentionally reduce my focus from 100% to 99.999% this year by helping you out IF in exchange you'll do something that improves my efficiency in my remaining 99.999% of the time by around a factor of one ten-thousandth"

Its a market driven approach. Plenty of game theory behind it, too.