I'm the other twin, Jess. I love to run and have ever since we started running back in 9th grade on the high school cross country team! The "free" t-shirts definitely provide incentive, but that's just part of it.
Now I'm not fast like Jen, but I can run for a long time. Sometimes I listen to music and sometimes I just like to go out without headphones and trot along enjoying the sounds around me. From 5k's to 50-milers, I've done a ton of races.
As a Marine, I spend a good portion of my day worrying about other people's problems - who's in trouble, what tasks have to be completed, administrative stuff...and my mind needs a break!!!
I run because it calms my mind.
I run because it makes me feel good.
I run because it means I can eat more chocolate.
I run because it is another way to challenge myself.
I run because it is a way to enjoy the beautiful SoCal weather.
I run because I can...and I do it all for me!