[Having accidentally fallen on top of him, Mayumi flashed her panties to Rin. Thinking they'd be even if she saw his underwear, she then tries to forcefully remove his pants.]
Excuse me for not having big boobs. Sure being flat chested definitely puts me in the minority, but it also makes me unique. Personally I think you should feel lucky to know such a rare specimen.
This is bad. This is bad. This is so seriously bad. What am I going to do? Wait, what are they looking at? They're all looking at me. Oh no, do they notice I'm not wearing any panties?