Pumpster prefers the 13 to 15 year old , very frail looking, pale white boys. The kind of young kids who are run aways and wind up getting off a Greyhound bus in the city. That's the kind of body he craves. Reason why Pumpster hangs around those bus stations late at night. He may offer them a friendly place to stay for a few day. And even offers to show them his prize, super delux BowFlex. He may even "workout" with them.