Wild Strawberry: Quinn & Blaine
So this thing happened after Blaine moved to New York.
First of all, he and Kurt lasted about three weeks living together before Kurt unceremoniously ended their engagement over a petty fight about closet space. It was a catalyst really, an excuse to do something they'd been too afraid to do all summer. He moved out onto the couch for a few weeks until Santana decided that she'd had enough of the Hummelberry Show to last a lifetime and sublet a three-bedroom walkup in Chelsea. Sam turned up with his headshots to take the smallest bedroom and Blaine ended up across the hall from Santana.
Secondly, he found that he really, really liked living with Santana. There were always people around, these really fun and interesting characters from Santana's life at the café and Sam's modeling world. He'd made friends of his own at NYADA, and their place ended up being this weird menagerie of artists and models - you know, the beautiful people. They took to throwing parties, some lavish and some barely befitting the lowest of dive bars. It was everything living in New York should be and it somehow really worked between the three of them.
And then Quinn showed up to visit Santana for a weekend and there were shot. A lot of shots. Santana hooked up with the barista from the café on the corner and Sam ended up making out with some coltish model he'd met at his recent underwear shoot and Blaine found himself entertaining the former blonde Cheerio with tall tales on the roof of their building. Somewhere between the end of the Jose Cuervo and the beginning of the Fragoli Wild Strawberry, he kissed a girl for only the second time in his life. Awhile later, he woke up with a mass of blonde curls in his face and a pair of pink lace panties on his floor.
After Quinn woke up and snuck out while he was in the shower, he just chalked it up to a night of innocent fun that he would never tell anyone about. She took to calling him once a week just to talk and it should have been awkward but it wasn't. It didn't take much for their weekly calls to become almost daily, and she was suddenly his best friend. Three months after that wayward night on the roof, Quinn called to tell him that she was pregnant. They both cried for several minutes.
She came from New Haven to see him the next weekend, and they spent the entire three-day period talking about their options in the quietest of voices in his bed. He had a genuine affection for Quinn and certainly adored her, but he didn't want to force her to do anything she wasn't ready for. He knew all about her past with Beth and would accept whatever choice she made just as Puck had before him. She leaves him with a promise that they'll figure it out soon, and by the time she gets back to her tiny apartment at Yale, she's already called to let him know that she's keeping it.
They keep it quiet but end up telling Santana and Sam one night over Mexican when Quinn turns down a famous Lopez margarita for the third time. Sam is instantly protective and Santana is claiming godmother before they even get the words out. Quinn sleeps beside him again that night, and he wakes up spooned behind her in this really intimate way that just screams more than friendship. She kisses him before she gets on the train this time, her lips lingering longer than it should between two people who are claiming to be just friends. He realizes that he's stopped looking at guys on the walk back to the apartment and tells her all about his revelation when she calls to check in.
Everyone from high school eventually finds out when a photo Santana took shows up on Facebook. Kurt calls him for the first time since the breakup, and Puck sends a Quinn a polite congratulatory email from some airbase in Germany. They start talking about names and Mercedes insists on throwing her an elaborate shower when they're all back in Ohio for spring break. The baby is due just after finals, and she decides that she's going to transfer to Columbia so they can stay in the loft with their friends. They'll need the extra help and now that she's thinking about journalism, it just sort of makes sense. She still cries when he offers to move to Connecticut.
Finally, nine months after a night they still can't quite remember, Quinn goes into labor while they're making shadow puppets on their bedroom wall. He holds her hand in the cab on the way to the hospital and doesn't let go as they roll her into the delivery room. Avery Cooper Anderson comes squalling into the world in the middle of the night, and Blaine tells Quinn he loves her for the first time when they finally get to hold their son. It's not the family he always envisioned but sometimes dreams change. So do feelings and the way we think of attraction, of love and family. Blaine is certain of this when Santana and Sam come into fawn over their godson and Quinn gazes down at Avery with all the wonder in the world dancing in her beautiful eyes.
Later, when their son asks about how he was born, Blaine explains that love knows no limits. He might have believed that he could only ever love a man once upon a time, but he knows now that was because he could have only ever imagined loving Kurt back then. Now, he can't imagine loving anyone who wasn't Quinn.
And really, that's what happened when Blaine moved to New York.