Guy got his gf and her sister pregnant in a very short time period. What's the worst thing someone you know has done?

This happened to a guy I know, he was dating a girl, and cheating on her with her sister (who was 15). Both got pregnant, he denied both, got the paternity test done and both are his. He is currently being sued for statutory rape and the kids will be sisters and cousins at the same time.

Your turn reddit.