A Super and a Luthor

Try out "Mercy", a Supercorp Fanfiction; "She was The Girl of Steel. Kara Zor-El of Krypton, the last true Kryptonian. She was bullet-proof, capable of defying gravity, and stronger than any human had the right to be. She was an Alien. Heralded by some as a hero, a beacon for hope, and feared by others as the harbinger of extinction for humanity's freedom. Capable of carrying a plane, of seeing through walls she was as unyielding as time, as unmoving as mountains. But even the mighty Titan's knelt to the God's and all it took was a human to bring Supergirl to her knees. A human by the name of Lena Luthor. And five little words, 'Lena. Will you marry me?'"