Help with Leather Stains

So during Olivia's bath tonight, she successfully doused the Daddy's pants with buckets-full of water. After several minutes, he realized his black leather wallet was in the pocket which was most wet. So he responsibly took it out and wiped it dry on the belly of my shirt (that I was wearing). I now have black leather-stained streaks on my nice light pink shirt. Any advice on how to take those out? :-)