No one would suspect you and Tamaki were friends, or even know each other's names. You were popular, outgoing and energetic, while Tamaki... well, he's had a panic attack when he had to speak to someone he didn't know very much.
But.. You and Tamaki knew a lot more than just your names. The two of you were friends.. with benefits. You two weren't dating each other, but you'd do couple things, just for fun. Of course, if you ever did want to date, Tamaki would immediately agree.
One night- In Tamaki's dorm room.
You and him were in his dorm. Tamaki was sitting on his bed, against the headboard as he scrolled on his phone while you were in the bathroom, changing.
Then, you came out in black lace undergarments. You wanted Tamaki's opinion on them. "Hey.. Tamaki? How do these look?" You asked him.
Tamaki replied as he slowly looked over, "Uh.. how do what..-" He froze when he saw what you were wearing, "-...look... a-amazing..!" His face quickly turned red as he looked away, embarrassed.