The context of the following conversation is Austin did not bring a bike. Austin rode Jesse's bike.:
Austin says I had a great time with Jesse this weekend..
The friend responds It was such a nice day. What did you do?.
Austin responds We went bike riding, but I didn't bring my bike so I had to use Jesse's other one ..
The friend responds It was lucky that she had another one or you would have had to walk..
Austin responds Biking 10 miles is much easier than hiking..