Once Elena regained her composure, she placed a call to Bonnie. Seeing Elena's name on the caller ID, Bonnie answered. Casually, she said, "Hey Elena. What's up?" Immediately, Bonnie could hear the strain in Elena's voice.

"Bonnie, I was wondering if you could do me a favor?"

"Sure. What?"

"It's rather...delicate, so I'd need you to keep it quiet."

Bonnie knew where this was going before Elena said another word. "Um, ok. But I'm at the Grille with Jeremy right now."

"Ah, you can't talk."

"Exactly. Where are you?"

"I'm at Damon's."

"I can come by in say an hour?"

Relief washed over Elena that she wouldn't have to wait until tomorrow to talk to her. "Thanks. I appreciate it."

Bonnie replied, "I'll see you soon. Bye."

Elena hung up the phone with an odd feeling. She thought it was strange how quickly Bonnie agreed to meet her without knowing what it was about. "She said she'd come by in about an hour."

"Good." Damon brushed her hair behind her ear and looked in her eyes. "You going to be ok?"

She exhaled, shaking her head unsure. "I have no idea." Trying to gauge his true feelings, she asked, "Are you going to be ok?"

He tried his usual deflection instead of answering her. "I'm not the one who is pregnant."

She half smiled, knowing what he was trying to do. "Well, I certainly hope not. One surprise is enough." He laughed. "But you are the father. How are you doing with that?"

Damon inhaled before answering. He puffed his cheeks as he let his breath out. He repeated her words, "I have no idea." She understood. It was quite the shock for both of them. He said, "I guess we have some time to figure it out though."

A little over an hour after their phone call, Bonnie arrived at the boarding house as promised. Elena was both nervous and happy to see her. "Bonnie thanks for coming by on such short notice."

Bonnie followed Elena nervoulsy into the study, where Damon was waiting. "Sure, no problem."

Elena looked at Damon and swallowed hard before she spoke. "I don't know exactly how to say this but..."

Bonnie cut her off, "Elena I can explain."

Confused, Elena said, "Explain? You don't even know what I was going to say."

"Yes, I do. I know you're pregnant."

Still baffled, Elena asked, "Wait. How do you know that?"

Bonnie, hesitated, "Because I'm the one who placed the spell."

Damon was pissed. "You what?"

Shocked, Elena asked, "Bonnie, how could you do that to me, to us?"

"The spell isn't on you Elena. It's on Damon."

Now he was beyond pissed. "Me!" Through gritted teeth, Damon seethed out, "What the Hell did you do?"

"It's a fertility spell."

Elena asked, "Why on Earth would you do that spell?"

Bonnie put her palms facing towards them in a plea for understanding. "I was trying to stop Klaus from creating more hybrids."

Damon thought her idea was insane. "All you did was ensure his future supply."

Bonnie was quick to respond. "Not if a son is born to the doppleganger."

Elena was completely lost now. "What do you mean if a son is born?"

"The Petrova bloodline has continued on because each generation gives birth to a girl. If a male is born to the doppleganger, the bloodline is broken. We needed Damon's bloodline for that."

"Wait. Why Damon's bloodline?"

Recognition settled over Damon's face. He put his hand over his mouth then slid it down. He answered, "Because all the Salvatores have been male."

Elena looked at him surprised. "What?"

"The only women in our family were by marriage, not blood."

Now Elena was beginning to understand the plan. "So if your bloodline is used..."

Looking at her with a serious expression, Damon finished her sentence. "You're sure to have a boy. What I don't understand is why now? Why not Stefan? He has the same bloodline. Why even pick a vampire at all?"

Bonnie tried to explain. "The witches specifically wanted you. That's why they waited to guide me to the grimmoires containing the spell. The spell was divided between 3 separate grimmoires, to prevent it from being discovered, until the time was right."

Damon couldn't quite believe what he was hearing. "Me? Why me? And don't tell me it's because I'm they're favorite."

"They didn't want Stefan. His bloodlust issues and guilt made him too unstable."

Damon scoffed. "Yeah like I'm so stable."

Bonnie ignored his sarcasm and continued, "A human would be too weak. They chose you because your love for Elena is unconditional. Even if she stopped loving you, you would never abandon her. And you've proven over and over that you would do absolutely anything to protect her, even die for her. With you as the baby's father, he has the best chance of survival."

The weight of her words settled on him, as he looked seriously at Elena. They both knew what she was saying was true. But he never took compliments well. The witches always hate me. Why now would they choose me for something so important? Still not happy with the answer, Damon said, "You could've warned us first."

"If I had, you wouldn't have gone through with it."

"You're right, we wouldn't have! You put Elena's life in danger for something we don't even know will work. You know the minute Klaus finds out, he'll try to kill her."

Bonnie countered. She knew before she even placed the spell that Damon would not be happy about it. "That's why you're here to protect her."

Damon was livid. He scoffed at her. "And how am I supposed to do that? He's not stupid. He'll figure it out when she starts to gain weight."

Elena tried to buffer Damon's anger. "Bonnie, what happens to the baby after he's born?"

Bonnie shrugged her shoulders. "It doesn't matter. Once he's born the line is broken. Your blood will become useless to him."

Elena exclaimed, "How can you say that it doesn't matter? How do we know he'll be safe? How do we even know he'll be normal? I can't have a baby knowing he could die the minute he's born."

Bonnie looked at her with complete understanding. "Oh Elena, I didn't mean anything by that. The baby will be 100% human. The fertility spell was used to make Damon's genes human again. Once he is born, he can live a normal life."

Exasperated at her flippancy, Damon said, "How when he'll have a target on his back?"

Bonnie shook her head. Looking at Elena, she explained, "The spell ensures his protection. He can only be killed by the things that can kill Damon...fire, decapitation, staking or removal of his heart."

Damon and Elena looked at each other confused. Elena spoke first, "You just said he'd be 100% human. So he'll be immortal then?"

"Not exactly. The spell uses the healing effects of Damon's vampire blood to prevent him from being killed. He will eventually grow old and die but from natural causes."

Her explanation didn't make sense to Elena. "If he's protected by Damon's blood then why does it matter if Klaus finds out? He won't be able to do anything to him."

Bonnie looked at her sympathetically as she broke the news. "He's not protected while you're pregnant. If you die or are injured then he could die too. That's why you need to be careful. Once he's born and the cord is cut, Damon's blood takes over to protect him."

Completely confused, Damon said, "Wait what?"

Bonnie explained, "It goes back to the bloodline. He carries your blood, but while he's attached to Elena, he's attached to the Petrova line. Once that attachment is severed at birth, he becomes a Salvatore."

Damon, being the skeptic that he is, wasn't buying what she was spewing. "Something doesn't add up here. Why go to all this trouble with spells, just to stop Klaus from creating hybrids, when all Elena had to do was not have children? And why protect him after the birth? What aren't you telling us?"

Elena looked at Bonnie and noticed a panicked look on her face. The type of look you see when someone has called you out on a lie. Elena pleaded, "Bonnie, if there's more, we need to know now. You have no right to keep it from us."

Bonnie swallowed hard. She took a deep breath before continuing. "The real purpose of his birth is so the Originals can be destroyed once and for all."

Damon demanded, "How, when the last remaining weapon that could kill them was destroyed by Klaus?"

Bonnie replied, "The baby is the weapon." Damon and Elena looked at each other with astonishment, and then back at Bonnie with confusion. "Each second that he's alive, the Originals will grow weaker. It's not something they'll even notice. Eventually they'll be weak enough to be killed like any other vampire. His birth breaks the Petrova line that created the Originals. His life puts an end to the curse by killing them. Unfortunately, since their stength is tied to his life, he will be the only one that can kill them. When he grows up, he'll know instinctually when the time is right."

Damon asked, "And what if he chooses not to kill them?"

Grimly, Bonnie replied, "Then his life will be short."

Damon shook his head, "Great. His life is doomed just like the rest of us, and he isn't even born yet."

Suddenly, Elena thought about the consequences to her friends and to Damon. "If the Originals die, so does every vampire including Damon."

Bonnie shook her head. "No, they'll be released from the curse."

Damon had held his temper as long as he could. He was beyond irritated with this game of 20 questions. "What do you mean released?"

Bonnie explained. "All vampires will become human again. It's the Originals' fault that vampires were created in the first place. Any attrocities committed by vampires would never have occurred if the Originals hadn't started it all. They're the only ones who will be punished."

Elena inhaled sharply, raising her hand to cover her mouth. "Oh my God Damon! You'll be human. Caroline, Tyler, Stefan...will all be human."

Damon was floored by the possibility. He had only wanted to be a vampire to be with Katherine. When he'd thought she was dead, he hadn't wanted to turn. Since then, he had desperately missed being human but had to accept the reality that he couldn't go back. His son, the one who shouldn't even exist, would free him of this curse. Ironic since his father is the one who killed him, triggering the curse. Damon didn't know what to say. "Let's not get ahead of ourselves here. We have a long way to go to even make that a possibility. We're going to need a plan to see this through."

Elena teased. "Well plans are your specialty. The witches picked the right vampire for that."

Though Bonnie knew she did the right thing by casting the spell, she still felt guilty. "I'm sorry guys. I wasn't trying to throw you under the bus, but this has gone on too long. They've ruined too many lives. And all our other plans have failed. This is all we have left."

Elena took a deep breath before exhaling. "Please tell me there are no more surprises like twin vampires or something."

"No, I swear. You know everything."

Still pissed at being put in this position, Damon warned, "We'd better. Anymore schemes done behind our backs and it will be the last spell you ever do."