In the Genes
This could be a good start for a Incredible Hulk/Avengers cross BtVS. Which of course, neither of which do I own.
However try as I might I can not get any further into it. I'm hoping someone else may get inspired.
Jessica Harris, who had once been known as Betty Ross, sat in the parents section of her only son's Graduation. She was far from proud of how her son had been raised, but despite everything she knew that Xander was a good person, just like his real father. Not that Xander knew that the man he thought was his father was not actually so. Tony had been a good man once, but there had been no love between them, she'd married him to get her name changed, so her father couldn't find her. Tony knew who Xander's father really was, it was the reason he started drinking, but he'd always kept the secret even when drunk. Betty shuddered when she thought about what would happen if her father ever found Xander. Despite the fact Xander has never had an episode, who his father was and what he could be carrying in his blood would be enough to make Xander a lab rat for the rest of his life.
What happened next happened to fast for Betty to fully understand. One moment the Mayor was making his speech the next he was changing. It gave her flashbacks to that terrible night so many years ago, but the Mayor wasn't turning into a Hulk, but some kind of snake monster. Betty stared in horror as it seemed that not only was her son not surprised by this but seemed to expect it. The next few minutes went by in a blur of action, Xander was directing the rest of the Graduating Class in fighting off the snake monster that had once been the Mayor of Sunnydale, and they were surrounded by what looked like vampires.
Suddenly there was a pause in the chaos as the short blonde friend of Xander's, Buffy as Betty remembered yelled to get the snake monsters attention. Betty was too far away to hear what Buffy said the monster. But as she turned to run into the school away from the monster the unthinkable happened. Someone ran blindly out of the crowd and barrelled straight into Buffy, causing them to both fall over in a tangle of limbs just as the snake was going in for the kill.
"Buffy!" someone roared, causing most fighting to stop including the snake, which turned to look at something to her right. Betty turned and once again froze in fear, it had been her son that had roared, she had never seen him so angry, not even when Tony had become physical while drunk. Then Betty worst nightmare came true, Xanders eyes flashed bright green.
"Oh no." Betty whispered as Xander started to change.
Please review, and maybe adopt.
SSG