Idk he thinks this why prepping him
http://www.mangago.zone/read-manga/ou_sama_no_koi_asobi/sa/ibx_chapter-8/pg-21/
After rereading that page I guess he compared because he thought that if it were a woman she would've been more demanding? Or is it because he was just so frustrated with everything regarding his work and his inability to please that he thought he would've already had his way with her? Idk, I don't get it. Honestly it doesn't fit his character, that stray thought there. Author-san need to explain themselves
Gosh I can‘t get over how perfect they are! However, one thing irked me. While they had sex he „comparised“ makino to a woman....but why?? What was the point here?