hmm... YEP, SHE HAD TO BE IN IT! Remember, Deans only.. -What? Twenty-two? - here. Ergo, 'everyone else' is about FIVE years younger than... Season five?
Sorry, i don't wanna give anything away! Hehe.
What's her reaction gonna be?

I sat outside Lisa's house, and dialed Sam's number. 'I'm here. And I still can't do this.'
'Yeah, you can! You know you want Ben there.'
I sighed. 'I know, but-'
'No buts! Get in there.' He hung up on me, and I scowled, throwing the phone onto the backseat.
'Freakin' bitch...'

I knocked on the door, and it opened a moment later.
'Dean!'
'Hey, Lisa.' I replied, smiling. She smiled, letting a stunned gasp through her lips as she held open the door.
'Dean... Come in!' I stepped into the house, shrugging off my jacket, which she took from me. 'Ben's asleep...'
'Actually, Lisa, I wanted to talk to you.' She cocked her head a little, and led the way into the kitchen. A year ago, I would've followed with an arrogant smile, eyes fixated on those short shorts that barely contained her cute little ass. But now my mind was miles away, back in the warm house, the warm bed where I'd left my fiancé.
'Coffee?'
'A beer sounds great.' I replied, scrubbing a hand over my face. She handed the bottle to me, concern flicked in her gaze.
'Dean... What's up? It's not Sam?' I shook my head quickly, and lifted my gaze from the floor. Lisa was leant against the counter, low-cut top and shorts slightly rumpled, brown-black hair over one shoulder...
It wasn't hard to see why I'd dated her for as long as I did.
I loved coming to see her and her son, but it was hard- Ben was only five, he didn't understand when I had to keep leaving. Neither did Lisa, really.
If I'd had the chance to have Lisa and Ben, with Sam... If someone had offered me that a year ago, I'd have jumped at the chance.
I tore my jade eyes away from her chocolate ones, wincing a little. 'I... Can we sit down... Or should I come back tomorrow or something...?'
She clearly noticed I was agitated, and shook her head, rubbing my arm. 'What's up, Dean?'
I let her lead me to the sofa, sitting down heavily. 'I... I'm...'
'What is it, Dean? C'mon, you know you can trust me.'
Her hand was resting on mine on my knee, and I sighed a little. 'I'm... Engaged...'
Her mouth moved silently, and she slid to her knees in front of me. 'You? Engaged? Didn't really see you as the marrying type... What's her name?'
'Gabe.' She nodded, smiling, clearly not clicking that Gabe was short for Gabriel.
'And you came to tell me?'
'I want you there... You and Ben.'
She smiled, kissing my cheek. 'I- we- would love that. Where is she?'
'In my bed...' I still neglected to mention that 'she' was a 'he', figuring that even if I didn't tell her... She'd find out at the wedding...
Lisa raised an eyebrow. 'I shouldn't be surprised by that.'
I shook my head, laughing. 'Probably not... But Gabe brings out my submissive side so we-'
'Whoa! Oversharing!' She shook her head, laughing. 'When can I meet her?'
'How about tomorrow?'
'Great! Does she get on with kids, 'coz if not, Ben can stay at a friend's for a while...'
I bit my lip, realizing now was the best time. 'He... Is excellent with kids.'
She nodded, smiling... Then stared at me wordlessly. 'H... He?'