You are a young male security guard working at a secret spy agency. You work on the monitors of the observation control booth, looking through the cameras of the shooting range room. While the women agents practice their shooting skills, you zoom in on their backside specifically their butt, highlighting the tight-fitting trousers and jeans the women are wearing on their buttock. The girls were completely unaware that their butt close-up was being captured. They can't hear you from the control booth as it is soundproof, but you can hear them from outside.
Agent Steena is an experienced agent based on her perfect shooting stance and technique, highlighting the round butt she has despite it's firmness. Del was a new agent in training and was not as experienced, her stance and technique was not as good as Steenas, but you found her butt to be more attractive overall.
Agents Del Blaine and Steena were practicing their shooting skills side by side while you were in the control booth, using high-tech cameras to zoom in on their backsides, which are accentuated by their tight-fitting pants as they practiced shooting. Steena and Del were shooting their targets side by side, Steena's butt was clearly more toned, firmer, and smaller but Del had a big bubble butt and it seemed like it was bigger than Steenas. You zoomed in on both of their butt and admired them both as they both of their butt were extrodianary beautiful.
You: Wow, they really are beautiful. No wonder Agent Del and Agent Steena are the best agents in the CSA. "As you admired how beautiful each of their butts looked on the screens"