Warning: SPOILER for Harry Potter and the Half Blood Prince! It's not anything really major but...don't read if you don't want anything to be spoiled for you.

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A little funny something inspired by my reading of Book 6. I am actually very happy Remus will have someone to be happy with - That was why I created Cassius Malfoy. So I'm glad JKR and I were on the same page – even if the person she's paired up with Remus isn't a tall blond man. :-) And even though the romance with Tonks seems to come out of left field. But...I like Remus to be happy so...

Takes place in my Alternate Universe, during the events of OOTP, before Harry has come to live at Windy Corner.

Only You

"Cassius!" Remus shouted up the stairs. "I'm leaving! Dumbledore just owled me with the location." There was no response. Remus started walking up the stairs. "Cass?" He looked in their bedroom where Cassius was curled up on their bed. "Cass? What's wrong?"

"Nothing." Cassius tightened his arms around Remus's pillow and burrowed his face into it. "Just tired."

Remus laid down and put his hand on Cassius's hip. "What's wrong?"

"I miss you when you're away."

"I know. But it's only one night. I promise, I'll come back as soon as I can."

"Tonks is going with you?"

"Yes. I'm meeting her at Grimmauld Place."

Cassius scowled.

"What?"

"You think she's pretty?"

"What?" Remus blinked. "Well, yes, I do think she's pretty. I could do with her having hair-colored hair more often, but she does managed to carry off the odd colors. Must help that she can change her eye color to complement it."

"She's not that good of an auror." Cassius huffed.

"I'll admit, she's a little clumsy, but she'd dedicated. I think she'll improve over time. And she's really very nice. I like her very much."

"How splendid for you that you get to spend the night together then." Cassius said icily.

Remus blinked at his mate for a few dumbfounded moments.

"Are…are you jealous?"

"No." Cassius said quickly, turning over.

"You are!" Remus sat up, feeling shocked. He pulled Cassius's shoulder, forcing him on to his back. "For Heaven's sake, Cassius! I'm gay! And I am very happily married to you."

"Really?"

"Yes, really." Remus answered calmly, wanting to add 'daft idiot' but he restrained himself with considerable effort.

"It's just…she gets all…I don't know…around you. She likes you."

"Just because she likes me doesn't mean I like her in that way."

Cassius sighed and a pale hand touched Remus's arm tentatively. "And you'll be seeing Sirius too."

"Cassius Julian Aurelius Malfoy Lupin, so help me-" Remus stopped and took a deep breath. He unzipped Cassius's jeans and reached inside. "How much do I love you?"

"A lot." Cassius whispered.

"Do I love anyone else the way I love you?" Remus brushed his mouth against Cassius's.

"No." Another whisper answered him as Cassius'seyes fluttered shut.

Remus kissed Cassius's neck as Cassius began to gasp and arch beneath him.

"I love you," Remus growled, nipping at Cassius's ear. "Only you."

Cassius mumbled something incoherent as Remus felt warm stickiness on his hand.

"I love you." Remus repeated firmly. "No one else."