The Vampire King's Mate

Armin

Levi looked at Eren suspiciously.
"....what are you up to?" Eren gulped and got out of the bed.
"N-Nothing levi! J-Just getting dressed!" Eren went to his bag and saw a text. In all capital letters it said Armin's fault. Eren furrowed his eyebrows in confusion and decided to message her later. He grabbed a band tee and baggy pants. Before he could change into them, Levi walked over and ripped it out of his hands.
"LEVI WTF??" Eren reached for it but Levi held it away.
"No mate of mine will wear rags." Levi tossed it out the door and went into his closet and grabbed a long shirt.
"Change into this" he held it out for Eren. Eren lifted an eyebrow.
"Any pants?" Levi smirked and threw the short ontop of Eren's head. Before Eren got the shirt off, Levi grabbed Eren's bag and left the room. Eren nearly fumed as he changed.
"Stupid Levi....stupid pants....stupid- OMG LEVI!!!" Levi came running back in.
"What-what is it?!" Levi caught sight of Eren in his shirt which squeezed Eren's curves and actually flowed like a dress. He and Eren blushed for different reasons.
"Levi! I-I look like a girl! Please give me some pants to wear!" Eren was embarrassed.
"....I don't think you need any, that DRESS seems to cover everything for you." Levi smirked and put empathize on the word dress. He was right though, the shirt reached to Eren's knees. Eren went red and opened his mouth to resort, but was cut off by Erwin opening the door. He looked between Eren and Levi, setting bis eyes on Levi.
"Are you well, sir?" Levi glared up.
"I-I'll take that as a yes. Oh, Eren has a visitor downstairs. An....Armin Alert? The coconut headed boy with beautiful eyes?" Erwin complimented and insulted Armin so normally Eren almost didn't catch the compliment.
"...uhhhh yeah, yeah that's him. Levi-"
"Go on brat." Eren smiled and ran up and gave Levi a hug. He kissed his cheek and ran out the room. He memorized some parts of the castle, so he remembered how to get to the front door. He nearly flew down the stairs and fell right on top of Armin. Levi felt a rush of pain through the bond and flinched.
"That little-" Levi ran out the door, a confused Erwin behind him. Eren looked down and smiled at Armin.
"Armin!" He gave a shocked Armin a hug. It took Armin a few seconds to realize that this chick was Eren.
"....E-Eren??" Armin blushed and pushed Eren off. Eren looked up at armin from the floor, pouting.
"What was that for? Is that that how you treat your best friend?" Armin stared at Eren in surprise.
"Eren, you-....your a-" Eren got in his face.
"I still have my dick thank you very much!" Eren got mad.
"And Levi forced me into his shirt!"
Armin blushed deepened and he stood straight up. Eren realized what he said was misleading.
"Armin- wait, not like-"
"EREN!" Levi came flying down and whooshed right next to them.
"Are you alright?" Levi pulled Eren up. Eren nodded.
"I'm fine Levi." Eren brushed his hands on Levi's shirt. Levi looked at Eren in disgust.
"Oi, brat-" Armin pushed a letter between them. Both of their eyes trailed down to the paper.
"....uhhhhh Armin? What's this?"
"Yeah brat, why are you giving us.....a letter?" Armin bowed, keeping the letter still.
"I INVITE EREN YAEGAR AND VAMPIRE KING LEVI THE THIRD TO A PARTY AT MIKASA'S HOUSE!" Armin was panting at the end of his....invitation. Eren was absolutely mortified.
"Armin, Mikasa already invited me." Eren was not sure what to say. Armin looked up with determined eyes. Erwin was watching him from the third floor.
"I wanted to invite you and your lover more formally Eren, I don't think you should run off and worry King Levi more than you should. As your mate, it is his right to go where ever his mate goes. This really is in your best interest Eren." Erwin smiled from above.
"Interesting." Levi looked between Armin and Eren. He gave Eren a we-will-talk-later look and growled. Eren looked down guiltily.
"Levi-"
"We will go. But if you ever try to hide something from me again Eren, I will lock you up in this castle so you may never leave." Eren whimpered. Armin was nervous but kept a straight, determined face. Levi looked at Armin, looked him up and down to size him up. He then took the invitation.
"We shall see you then. Erwin." Erwin flew down and kneeled next to Levi.
"Yes, my king?" Erwin looked down, not forgetting to look up at the cute boy with a serious looking face.
"See to it that Mr. Alert gets home safely. Me and Eren have some talking to do." Eren whimpered again. Erwin stood up tall and held his arm out to Armin.
"Shall we go sir?" Armin blushed. He shakily took Erwin's bicep, feeling his miscle through the shirt. He turned to look at Eren, smiling sadly.
"Bye Eren." Erwin led Armin out before Eren could say anything. As soon as the door closed, a small voice echoed in the room.
"Bye."