She's so short! And it's not a midget, it's just a girl with such a short stature. You look at the bald jock and the blond girl, and it's kind of scary for her at first. Fortunately, the bald man treated her gently and lovingly, and the girl was genuinely happy about what was happening.
It was immediately clear from the brunette what she came to the gym for. She did her exercises poorly and waited until no one else was in the gym except for her and her coach.