Emma is my favorite, I love how she doesn't know how to do with Mashiro straightforward/perverted attitude. Also I wonder what she was imagining after Mashiro said "I'll do exactly as Emma says"... maybe some of Mashiro's pervertedness is rubbing on Emma
She definitely had a moment of thinking about asking for lewd stuff in the bottom right panel. Don't panic and back away, embrace those thoughts and the stacked nympho in front of you.