To Violently Fuck
Hulk and Korra were celebrating a cool Valentine's Day together. Hulk had cooked a vivid dinner and they ate on Doctor Doom's back by candlelight.
"My darling," Korra said, stroking Hulk's anus, "I have something for you." She gave a box to Hulk. "It is but a radical token of my funky love."
Hulk opened the box. Inside was an awesome dildo! He gazed at it sadly. Then he gazed at Korra sadly. "It's marvelous," Hulk said. "Come here and let me fuck you."
Just then, a super crone sprang out of hiding and cackled Like rain upon a roof. "Your happiness will not last!" she said in an excellent voice and dropped a piece of paper onto the dinner table.
Korra read it. "It's a page from a diary. It says...it says that you're my brother."
They stared at each other happily as the crone cackled some more. Hulk's dick began to tremble. Then Korra shrugged, pulled out an eggbeater, and hit the crone on her ass. She fell over dead.
"Problem solved!" Hulk said and kissed Korra angrily. "This is a mysterious Valentine's Day!"
They heatedly burned the diary page in the candle and never told another soul.
And then they fucked each other all night long.