And, after Friday night, Mullens finally has a varsity game under his belt. He chipped in 13 points as World Harvest Prep won its season opener at Mid-State League rival Summit Station Licking Heights 74-61.
Mullens had six points in the first half and seven more in the second. In the second half, he hit a pair of turnaround jumpers in the lane, a foul line jumper and made 1 of 2 free throws.
"Before the game, I set a goal," Mullens said. "I told my coach I wanted to get 20 (points) and 20 (rebounds). I guess I came up a little bit short. But it was fun to get out there and play."
Licking Heights used zone defenses to play in front of and behind Mullens to limit his touches – a treatment he can expect from most undersized opponents.
Was Mullens nervous about making his varsity debut?
"No because I have been against better competition at the camps," he said. "I was used to it."
World Harvest coach David Mobley discussed Mullens' ongoing development.
"I'm happy at his progress," Mobley said. "He is really coming along. We've only had 25 practices. Just in this last week of practice, I'm excited about the way the guys are coming together. They are listening and allowing themselves to be coached. They are showing the right attitude.
"It's rewarding to see them apply what we're teaching. And B.J. is working hard, too. He is certainly getting a lot better."
Mullens and his World Harvest Prep team is scheduled to host Mount Vernon Academy Monday and will tackle Millersport Tuesday.