Trunks fought Goten's grasp, tears running down his eyes. Goten had to go super saiyan to keep him from meeting the same fate as his father.
Gohan looked defeated. His arms hung to his sides, gazing blankly at Buu preparing to eat Vegeta.
"He was playing with us..." He said. "Every hit we landed, nothing hurt him!" he roared.
Meanwhile, Buu inched closed to Vegeta, who's fate was turning out similar to Raditz's. He lobbed energy in Buu's face in a last ditch effort, but it was useless. They could only watch in horror as Buu began to wrap around Vegeta.
Goku, roaring with rage, blasted after him, only to be smacked away by Buu. Like a fly.
Tendrils began to squeeze and cover Vegeta, until reaching his neck. Then he spoke.
"Kill him, Kakarot. Make this bastard pay!" He hissed as the tendrils covered his hair. But his shape remained. Why hadn't he been absorbed?
The center of the 'cocoon' that encased vegeta began to glow a pale white. As Buu pulled the mass into his chest, he began to change shape, taking on features of Vegeta. But the cocoon still glowed, increasing in brightness. Unexpectedly, a distant boom was heard, like a sonicboom, as Buu was engulfed in a bubble of light. The light Grew brighter like a sun and exploded, knocking all of the Z fighters back, but not harming them.
When the light subsided, Vegeta was nowhere to be found. Bits of Buu rained upon them. The truth hit Goku like a bag of bricks: Vegeta had self destructed to buy them time. It would take a while for Buu to regenerate his whole body. In doing what he did, he prevented Buu from getting stronger and bought them time to figure out how to kill him. One word hit Goku's mind: Fusion.
He instantly grabbed Bardock and Gohan, using his instant transmission technique to take them to Old Kai. Goku looked around frantically, but he was nowhere to be found. His eyes fell upon a small hut with a red roof, which Goku instantly flew to. He knocked twice before kicking open the door. He looked through the sparsely decorated hut, until discovering that the tiny hut magically had an upstairs. He flew up the stairs only to discover a small purple man in the corner, buried in mounds of Dirty Magazines.
Goku looked at him, clearly embarrassed to be in a room with so many dirty pictures. Goku heard a faint 'help' from the pile and carefully brushed several piles of magazines away, revealing a disgruntled Old Kai.
"Thanks Goku, I thought I'd never get out!" He sighed.
"Old Kai, I need another set of Fusion Earrings!" Goku yelled.
"Another set? Why?"
"Buu is back"
"Buu?"
"Somehow, he came back! He killed Vegeta!" Goku said frantically.
"Dear dear, what a problem." Old Kai mumbled. Gohan and Bardock soon walked up the stairs. He looked at Goku, seeing the pain his his eyes. He lifted his fist and opened it, letting out a bright flash. Goku blinked and saw two earrings sitting dantily in his palm.
"Those are the last pair ever to exist, the last pair that can ever be made. After these, your out." He sighed. "Go on now, before Buu kills everything. Again."
Goku grabbed Old Kai in a bonecrushing embrace before using IT to take Gohan and Bardock, along with himself, back to earth.
"Better tell King Kai..." he said.
--------------------------
Goku arrived back on earth to a scene of mass destruction. The entire valley that they were in was charred and black, like it was blasted with napalm. There were no hills, and entire areas of earth were demolished into massive craters.
In the air fought Super Saiyan Three Gotenks and Buu, swinging at each other like there was no end. Buu attempted to drive a punch into Gotenks' face, but Gotenks ducked and planted a fist into Buu's chin. Buu cracked his neck back in place and piledrived Gotenks into the earth with massive force, causing him to Un-Fuse. Goten and Trunks painfully attempted to get up. Buu looked down at them. Just as he reached out to grab them, his arm violently exploded into a mass of thrashing tendrils. Buu squealed in and looked just int time to see Goku, in super saiyan three, blast off his arm. He looked to Bardock.
"These earrings will make us one being, strong enough to kill this monster" Goku said. Bardock looked at the earrings before reaching out to take one.
"It will combine our maximum possible powers and multiply them, making us stronger than we would be alone." Goku grinned. Just as he reached out to hand one to Bardock, he was hit in the chest with an enormous energy blast, which knocked him to the ground and knocked the earring into a large patch of grass. Buu launched himself after the earring, not wanting a repeat of the Vegito incedent. He was close, when a knee appeared a smashed Buu straight in the teeth, sending him rocketing back. Goku quickly rolled over and began to frantically search for the earring.
Gohan redied himself for another attack from Buu. He had to protect Goku. The earrings were their last hope. Buu steadied himself and dashed at Gohan, who blasted him back again with a Masenko attack.
"Found it!" Goku yelled.
"Yes!" Bardock and Gohan hissed.
"DAMN!" Buu roared.
Goku took the earring and threw it to Bardock, putting the remaining one on. Bardock looked at it for a second before putting it on. Then, as if being drawn by an invisible force, they were pulled into each other belly first. A massive explosion erupted, the clouds darkened and thunder struck. Smoke issued from the bright ball of light surrounding the place where Goku and Bardock had met. Smoke began to issue out as the sunlight began to show a tall dark shadow. Then it began to speak:
"Give it up Buu, your life is ours now. Prepare to meet the awesome power of-"