"Cas" Said Dean walking into the library "We need to talk"

"If it is about last night, I'm sorry" Said Castiel closing some kind of book and turning his eyes to Dean's face "You look worried"

"I'm worried"

"Why?"

"It's about Balthazar"

"What is it?"

"He is trying to make up with you, isn't he?"

"Please, Dean" Said Castiel laughing "You are jealous of a guy you don't even know"

"What about the party?! He was all over you!"

"He was just flirting with me" Said Castiel smiling "There's nothing wrong with that"

"Of course there is" Shouted Dean "Can you see he is trying to take you away from me?"

"Dean" Said Castiel taking his glass off in a calm manner "I thought I was clear when I said I don't know if there is an 'us' here"

"I know" Said Dean holding Castiel by his arms "But I also told you that I love you, I can't just watch your ex-boyfriend flirt with you without feeling a thing… I'm human, Cas"

"I understand" Said Castiel caressing Dean's face, Dean had a sadly concerned expression "But if you love me, Dean-"

"I do" Interrupted Dean

"Then you must let me be" Said Castiel running his fingers thought Dean's hair, it was a bittersweet moment, Castiel knew that Balthazar could do anything to get what he wanted, Castiel dreamed about this, that one day Balthazar would return and he could live as he used to, but Dean came along; Castiel heart was torn between coming back to Balthazar, or take a chance on Dean and let things just happen.

"I get that, Cas…I get that" Whispered Dean heartbroken, he knew that he loved Castiel now, he was close to him, but Castiel was too far away from Dean.

"Besides" Said Castiel letting Dean go and turning away to the bookshelf "Aren't you curious about Lisa?"

"How do you know about that?" Asked Dean suspicious 'Did Meg told you?' Thought Dean 'Or did Balthazar told you?'

"So you knew" Said Castiel opening a big book and unfolding some pages

"Yes, Meg told me that Lisa came back to town" Said Dean embarrassed, he knew Castiel was into him already, something wasn't right "Why?"

"Nothing special" Said Castiel smiling "I was thinking why it didn't work"

"I guess, she was too old fashioned for me" Said Dean turning away and scratching his head

"Dean" Said Castiel looking at his back "If you want to get back with her, I understand, you may have a son with her"

"What!?" Shouted Dean turning away to find Castiel's eyes questioning him "He isn't my son!"

"Are you sure?" Asked Castiel, his eyes hurt Dean like a knife, his doubting expression was severe

"I-I" stammered Dean for the first time, He knew he couldn't lie about this. Castiel would certainly never forgive him if he hid the truth "I don't know, Cas"

"So you don't know if he is yours" Said Castiel looking again to the book and unfolding another page

"Honestly?" Asked Dean worried, Castiel nodded in silence "I really don't know, he could be"

"Then you need to talk to her" Said Castiel closing the book "If he is your son you must know"

"Why do you care?" Asked Dean more curious than upset

"Because a father that leaves his son is worse than any father" Castiel said it with so much hate that Dean understood that he wasn't the only one with daddy issues

"Is it about your daddy, Cas?"

"Yes, and no" Said Castiel opening another book "My father left me, and I don't want Ben to end up like me"

"What's wrong to end up like you, Cas?"

"Dean, I'm a librarian!" Said Castiel opening his arms "These are my only friends, let's face it, I know I'm a loser" Castiel threw a book away and continued angry "I can't speak with people, I can't even fuck quit this job, because this is all I have"

"That's not true" Said Dean picking the book up "You are one of most amazing person I've ever meet."

"You don't know me, Dean" Said Castiel taking the book off his hands

"No" Protested Dean "You don't know yourself!"

"That's nonsense, Dean"

"The only nonsense here is to say you are a loser and that you got nothing" Said Dean with his eyes wet in a mix of angry and sadness 'Why does he think he is a loser?' Thought Dean.

"You are the one that I love, and you'll always have me, Castiel!"

Castiel looked at Dean's eyes, a silence invaded the library and both knew that nothing else should be said, this fight was over, Dean shouted before leaving angrily:

"Why do you have to be so stubborn?!" Castiel smiled sadly, knowing that they are completely opposites side of a same coin, Dean had social skill and good looks, even in his bad hair days he looked handsome. Castiel felt like this fight was necessary, and was bound to happen.

"Will I always have you, Dean?" Whispered Castiel to himself smiling 'Did he mean it?' thought he, even Balthazar that claimed that loved him never said something like this. Castiel reflected on his relationship with Balthazar, it was pure physical, but Dean was different. He wanted to make love to him, to take him in his arms and never let go, but if Dean didn't like him after that? Could he bear being left again? "Dean" Whispered Castiel again to himself "I wish I could believe it"

Dean knocked on her door, he knew it was a bad move coming to see her, but after his fight with Castiel he felt that is was the right thing to do:

"Dean?!" Said Lisa surprised behind him, she was carrying a paper bag and a little boy stood by her side with big puppies' eyes, green eyes like his eyes. Dean froze like a stone and for one second his was out of breath "Oh, I thought I would never see you again" Continued She embracing Dean and smiling "Come on in"

Dean followed her in silence with his eyes on the boy; he looked very much like him. His eyes and the color of his hair, it was strange as seeing himself as a child.

"Lisa, I hear you were in town" Said Dean looking at her face, the boy went up stairs without even notice Dean's constant gaze "Then I decided to come see you"

"That's very nice of you" Said Lisa resting the bag on the table and closing the door after her, Dean sat on a chair close to the sink "Oh, Ben just forgot his skate outside again"

"Ben? It's that your son?" Said Dean trying to feign ignorance, but Dean couldn't help to think that Ben was his son too

"Yes" Said Lisa sitting in another chair "He is an amazing boy"

"How old is he?"

"He is eight years old"

"So you had him after high school, right?"

"Yes, I got pregnant and I moved from town…" Said she smiling "I'm sorry about blowing you off after the dance, Dean"

"So, that does explain everything" Said Dean smiling relieved. He remembered that Lisa disappeared after their prom's dance; Dean always wondered why she left him. Lisa was his first love, but she left without a word. "But why didn't you tell me?"

"Sorry Dean, I just found out I was pregnant and I panicked"

"Lisa, is he my son?" Asked Dean concerned, Lisa smiled and held his hand.