What's the biggest age gap you've ever had in a relationship?

Current Events

For a FWB thing mine was 10 years younger. She was fed up with college guys who didn't know what they were doing, lol.

Relationship was 2 years younger.
'Cause you know that I have no fear, ain't gonna walk into the river and disappear. I'm gonna be a powerful man. Red blood running down the broken sand.