so imagine that in gakuen hetalia, the swimming club is quite popular. bulgaria wants to join it so everyone can think he's super cool and stuff. hungary (why tf is she out of all nations in the swimming club when she's landlocked I get it australia is SURROUNDED BY WATER BUT SHE?) is standing by the pool and instructs him how to swim properly and as quick as possible.
bulgaria, after having swam across the pool several times: 'hey hungary can I take a break? I'm not thirsty anymore'