Disclaimer:Glee belongs to Fox, not to me.

Here's the bonus scene I wasn't expecting to happen but super glad it did. I feel like it completes the story in a way it hadn't been before, as short as it is. And writing a drunk Sebastian was very fun and really only fair!

To the reviewers, thank you so much. I'm glad you've appreciated the story and taken the time to let me know! To everyone, please enjoy the final installment of Blame it on Rachel Berry.

It was New Direction's third party celebrating their Nationals win. The multiple party idea was Rachel's, actually, since she didn't feel that such a victory could be adequately compensated by only one festivity – no one else was going to argue with her, of course. That's why Blaine and the rest were currently at Santana's house, as Rachel and Sugar had thrown parties last week.

Santana's party was, however, the first time that Rachel had invited her boyfriend Sebastian (Blaine still felt like was waiting for the punch line, even now) along. She hadn't brought him previously because of something about not rubbing it in the Warbler's face that they had won…but Blaine was certain that Kurt had only tried to spare Finn some heartbreak but had run out of blackmail material that stopped Rachel from inviting Sebastian.

Immediately upon Sebastian and Rachel's arrival (because they arrived together, of course), Finn had challenged Sebastian to a drinking game. Blaine had watched in morbid fascination as Sebastian drank Finn under the table – which he and everyone else in the room had predicted, of course. Finn may be a large guy but he didn't really handle alcohol well and Sebastian definitely trumped him in experience. Even Kurt didn't have any sympathy for Finn because he had warned him repeatedly about this… Blaine was just glad that he didn't have to watch Rachel cheering for Sebastian anymore.

Blaine only felt worse as the night wore on (and he didn't think it was the lukewarm beer in his cup). He saw Santana drag Sebastian over for a challenge of what appeared to be a never-ending line of body shots. Sebastian was taking his off of Rachel and Santana off of Brittney – and they proceeded to lick the salt off of increasingly inappropriate places. Blaine didn't know what made him sicker – Rachel's (and Brittney's too, of course) giggles as they let it happen or the way that Sebastian (…and Santana) looked at them as they did it.

Blaine set his drink down when he saw it happening and was grateful he hadn't had too much yet. He needed to keep a clear head and be conscious of what Rachel and Sebastian were doing – just in case he had to interfere again. He didn't care that Rachel hadn't appreciated his actions before…he was going to do it again anyway if he felt it necessary. Kurt appreciated the decision too, as he could now hold intelligent conversation even as he kept his attention divided.

Then Blaine realized that while he knew and had seen Sebastian drink… he had never seen him drunk. That had now changed.

"WHAT IS LOVE? Baby don't hurt me, don't hurt me, no more!"

Sebastian did not sing on key when he was drunk…or appear to care about it. He and Santana were singing and dancing together on top of a table – were they attempting to duet together? It wasn't working, whatever it was. Blaine stepped in to help a (thankfully) still sober Rachel beckon Sebastian off before he hurt himself. Brittney was doing the same for Santana but she appeared to be handling it just fine by herself from Blaine's perspective.

"You're pretty," Sebastian said to Rachel as Blaine prevented Sebastian from collapsing on her.

"Thank you. And you're drunk," Rachel said with amusement, helping Blaine keep Sebastian standing.

"Yes," Sebastian heartily agreed. "But handsome! Very handsome," Sebastian added with a slur. Rachel laughed but easily agreed.

"He should lie down for a bit," she said to Blaine.

"There's a couch," Blaine said, pointing at a free couch over by the wall.

"Come on, Sebastian. You need to lie down before you hurt yourself," Rachel said as they gently prodded and pulled Sebastian (why did he have to be so tall?) over to the couch.

"But I won! I beat…her," Sebastian said, wildly waving his arm in what Blaine assumed was supposed to be Santana's general direction. "Her. I beat her. I won!" Blaine wasn't exactly sure what the competition was – the shots? The singing? Blaine heard Santana's shout of 'No you didn't!' from across the room but was glad Sebastian didn't.

"Yes you did. Now come lie on the couch," Rachel coaxed.

"Is it my prize?"

"Yes, Sebastian, the couch is your prize for beating Santana," she answered. Blaine was feeling especially resentful about this entire situation. Rachel's voice was only increasing his irritation – a mix of humor, patience, and something like adoration.

Finally, they had reached the couch. "I claim this couch in the name of me!" Sebastian said victoriously before flopping down onto it. He let out an 'oomph' on impact. Rachel giggled as Sebastian stretched out across the couch. Blaine did have to admit it was funny, especially since Sebastian seemed so happy with the large grin (not even a hint of a smirk!) across his face.

Then, however, Blaine found the situation not so humorous as Sebastian tugged Rachel down on top of him. "Sebastian, what are you doing?" she asked but she didn't seem at all angry about it – more amused.

"Rachel. I want the couch and you," Sebastian responded insistently. Blaine didn't like the implications of such a statement. Sebastian could be very forward sober and Blaine didn't know if he could control himself when drunk – Rachel certainly couldn't, after all.

"Oh Sebastian," Rachel said with a huff but Blaine could see her smile – he frowned. "Okay. But you need to scoot over," she said, shifting in his grip. Sebastian let out another shout of triumph and loosened his hold. They shifted on the couch until Rachel was laying down with her head on the arm rest. Sebastian was on his side stretched out next to her along the back of the couch. He wrapped his arms around her and pulled her close, nuzzling his face into her neck.

Blaine almost found the picture they made cute except his stomach was twisting too much.

"Blaine, would you mind getting a glass of water? I don't think we'll be moving until morning," Rachel said to him but didn't take her eyes or her soft smile off Sebastian.

Blaine wanted to say a lot of things. He wanted to refuse and let Sebastian wake up with as much and prolonged pain as possible. He wanted to say that there's no way he was letting them cuddle on the couch for the rest of the night. He wanted to offer Sebastian a ride home to Dalton right now to separate the two of them. He wanted Rachel to be disgusted at Sebastian's drunken display (even though he hadn't done anything too untoward yet) and he wanted Sebastian to stop being charming even when drunk (it just wasn't fair!).

He said none of these things, though, and instead went to fetch the water that Rachel asked for. He did so as quickly as possible without seeming to be rushing in case Sebastian was going to try anything while he was gone. That logic didn't make much sense since Sebastian didn't even seem to notice him and it's not like the two of them were alone - just tucked away in a corner of the room all of New Directions was still in – but still. If he came back and Sebastian's hands…mouth…anything was inappropriately placed, he would dump the water all over the pair and happily face the wrath of Rachel Berry.

That being noted, Blaine didn't know whether to be relieved or disappointed that when he returned with a glass of water, he only had to set it on the side table.

The two of them were definitely more adorable than indecent. Rachel had wrapped her arm around Sebastian so that she could gently run her fingers through his hair. The ministrations were causing Sebastian's usually styled hair to come undone and a fringe was falling into his eyes. His head was still underneath her chin, face buried in her neck, but Blaine could see his goofy yet happy grin. His arms tightened around Rachel's waist and Blaine thought if Sebastian was a cat right now, he would be purring. As it was Blaine suspected that Sebastian was letting out a low, content hum that was the cause of Rachel's soft smile.

Only Sebastian Smythe would get more socially appropriate when he was drunk.

Rachel mouthed 'thank you' and Blaine merely smiled at her before walking over to his boyfriend who was watching them from a distance. "Is it horrible of me to say that I like the drunken Sebastian Smythe more than the sober one?" Kurt asked him.

"He took me by surprise too," Blaine commented. He never would have guessed that Sebastian was an adorable drunk. It was almost comical that Rachel and Sebastian completely reversed roles when drunk – Rachel got more sexual, Sebastian got less.

Once again, Blaine felt jealousy gnawing on his insides. He was jealous that it was Sebastian who received Rachel's attention and ministrations. He was jealous that it was Rachel who got to see the softer sides of Sebastian. He turned away from the pair, knowing that he was jealous of them together.

"Something wrong?" Kurt asked him, concerned. Blaine took a breath and exhaled. "No, of course not," he said with a smile that maybe was a bit forced. He leaned forward and kissed his boyfriend.

When he pulled away, he felt much better and his smile was completely genuine.