Lev is trying to sound smart to impress Vika, and is again shot down by her bluntness and knowledge. Her bluntness is played for humor here, although shooting people usually isn't a laughing matter. We also witness Lev's first experience of intimacy. It's not sex by any means, but it's the first time he's this close to a person he's attracted to in a vulnerable position, and he takes great care to not disturb her, making it a very intimate experience for him.