One of the thiccest in the bunch of stallions, Nova Reactor is a shy nerdy yet geek like stallion of incredible strength and prowess the likes of both his component stallions. His component stallions of Sunburst and Full Steam at first seemed like an odd pairing, the burly thicc train worker pony and the boom worm unicorn training to become wizard were the least to be expected. Yet they formed quite the stallion. A loose and relaxed pony, he is a rather calm stallion of many tastes. Liking to read many comic books as well as spell studies to enhance his magic abilities. Sitting on his fat voluptuous plot reading peacefully while every once in a while exercising with his weights and practicing pulling a train just like his Full Steam side.
 
All around he is a timid stallion going about his business and keeping himself occupied as he casually interacts with those he meets. He longs to succeed in his partial aspiration of being a wizard like his Sunburst half though wouldn’t mind working his train pony life like his Full Steam side. All the while swinging one of the biggest booty’s in Ponyville.