Star Butterfly stared in awe at the sight of her best friend. No, this could not be! Once again, she raked her eyes over Marco. Nope, without a doubt it was 100% true.

Marco Diaz had gotten insanely hot over the summer.

His chest had widened over the past three months, his karate training finally showing through. He had a light stubble on his face that looked like it was growing much better than how she had tried to make it grow. He looked so attractive.

"Star...you okay," Marco asked, an eyebrow raised at the princess.

"No Marco Diaz! I am not okay!" Star burst, running over to Marco and grabbing one of his arms. "Did I miss something?! Did you just suddenly get all tall and muscley and sexy one day!?" Star practically yelled, bringing the fit arm to his face and shaking it. "I want to be hot too!" She huffed as she threw his arm to the side and crossed her arms over her chest as Marco flushed.

Although Star didn't see it, she too had gotten incredibly attractive during the summer.

Her chest had filled out, as well as her hips, giving her a nice hourglass shape. Her hair had been cut short, just above her shoulders, framing her face perfectly. He had no idea how she was able to change so much over such a short time.

"Uh, well Star," Marco said, growing redder as he looked at the pouting girl. Star looked up at Marco, her head tilted slightly to the right as she waited for him to continue. "You uh- you see...you did. Summer-"

"Star!" two voices yelled, cutting off Marco as Star was tackled into a hug by Angie and Rafael. "You're back! You look great!"

"Thanks, Mr. and Mrs. Diaz," Star beamed at the two. The three walked away as they talked leaving Marco all alone.

"Oh yeah, by the way, you look really nice too," Marco sighed to himself.

Usually, the return of Star returning from Mewni would result in the Diaz's doing something special, like throwing a party or going out to eat but this time, Angie and Rafael hastily left.

"We would love to stay but...we have things to take care of," Angie informed Star as her and her husband opened the door to leave. Although Star looked at the two curiously, she didn't question the matter.

"Okay well, we will be leaving now," Rafael said before closing the door only for it to be opened again. "Oh and no friends over. And remember: be safe."

Marco looked at his parents confused before he started to catch the true meaning of the words, only for it to be confirmed by the wide grin and wiggling of eyebrows his mom was sending him. "GUYS," Marco shouted, embarrassed as he blushed for what seemed the third time today. Quickly, he threw a pillow at the door, only for it to be closed as soon as it came close enough.

Star giggled and slid up next to Marco before placing her hand on his arm. "So… What do you want to do?" She asked, biting her lip and looking up at him. Her eyes half-lidded in a sultry stare. Her finger making small circles on his arm.

"Uh~" Marco trailed off, his mind distracted by her hand on his arm. Star trailed her hand up to the nape of his neck and began to play with his hair as she moved closer, her chest now pressed against his as a light smile adorned her face. Over the summer, his hormones were driving him crazy. And the fact that a gorgeous girl was flirting with him was about to send him over the edge. Marco's face flushed yet again as he averted his eyes from her and stepped back. "Uh… Do you want some nachos?" He asked as he attempted to ignore the rush of heat throughout his body, especially towards his little friend.

"Hmm, I don't know," Star said in a soft, seductive tone as she stepped closer to Marco. "I think I have something in mind that'll taste way better than nachos."

Marco's eyes widened once more as he tried to back away but ended up backing up into the arm of the couch. Slowly, Star sashayed over to him, her hips swinging sultrily. Finally, Star reached him and Marco forced his eyes from her hips back up to her eyes, now clouded with arousal.

Star wrapped her arms around Marco's neck, her body completely pushed against his so he could feel her every curve. In a second, her eyes, usually light blue but now dark with arousal, looked to his lips before they flickered back up to his eyes.

"So Marco," Star said, her cool voice sending shivers up his spine. "Have you decided what you want to do yet?"

"Yeah," Marco answered his voice having turned low and husky before his lips captured Star's.

Star was in Heaven. When Marco's lips met hers she felt a wave of electricity pass through her body and all rational thoughts left her mind. His lips were soft and warm against hers, the smell of Marco's signature scent filling her nostrils. She felt her knees go weak as she began to feverishly kiss him back. Marco's hand rose to cup her cheek softly as he slipped his tongue in. She let out a soft sound that he returned with a low groan. He quickly pulled back from her.

"Star, if we don't stop, I won't be able to hold back." He whispered as he roved the kisses down to her neck. Star let out a satisfied moan as she ran her fingers through his dark brown hair. His stubble scratching at her, she stood up taking a handful of his shirt in a tight grasp and pulled him forward to look her in the eyes.

"Good." She whispered in response. Marco's face flushed once more and he quickly picked her up, like the princess she was, and the two of them started making their way up to her room.