Undertale Love Stories

CrossMare| Weight pt3

A bit of sex mentioned at the end. I hope you still enjoyed the short(?) chapter! Please mind the spelling errors, I'm currently typing on my phone as my computer is down.

             ~SR

The next few years were difficult for Cross. Namely because the Star Sanes, the rougher ones anyhow, were targeting him. They saw him as a weakness to use against his King. He also had to deal with the promise that he made with his Senpai. He desperately wanted to touch his Senpai's body, to feel its warmth underneath his hands.

Over time, fighting grew easier, as did his care for himself. It slowly was becoming something that he naturally wanted to do, it wasn't just a way to get to Nightmare!

He became more confident in himself, his magic growing stronger and his weight becoming healthy. He even had a bit of fat in him in his magical form!

Of course there were times when he slipped. When he didn't eat for weeks or trained too hard. Old habits die kicking and screaming. Still, he pushed through. His Senpai never seemed to be too upset by his failures too, so that made it easier.

Because he was eating right and treating himself right, he hit a growth spurt. This allowed him to naturally be as tall as Nightmare's aggressive form.

Anyone observing the two would've noticed how much Cross pressed his larger body into the ex-guardian. And how shy said ex-guardian appeared.

Nightmare could feel it every time he was near Cross. The monochrome skeleton was genuinely beginning to love himself. At first that made him feel a sense of happiness, at least privately. For this meant that his trusted soldier was going to be in better shape. It would also, hopefully, make him deal with whatever underlying issues he had.

However, as the years went by and that love for himself grew firm, and he literally grew... The tar covered monster became more hesitant. He remembered the promise, and he was a monster of his word! But... His little body was sensitive... Would it be able to handle his touch? Would Cross be weird? And he was so tall now! Would Nightmare be able to push him away in his passive form?

He did his best to ignore these feelings, pushing them as far back as he could. There wasn't much he could do at the moment, and he thought he had more time.

"Senpai~" a deep voice rang. Since his growth spurt, Cross's voice had also gotten deeper. It was like a soothing drum that relaxed even Nightmare's body.

The royal swallowed thickly, his eyes focused on some battle plans. Or at least attempting to focus on them.

"Yes, Cross?" He made sure his voice sounded bored instead of how nervous he really was.

"May I see your body, Senpai?" The pale skeleton gave a roguish smile, his eyes going lidded as they looked at Nightmare in a lustful light.

"Do you love yourself." Was the only response, the gooey monster doing his best to ignore the predatory stare.

"I do." Came the purred response.

Nightmare stilled, breath caught in his throat. He did. He genuinely did. Gritting his teeth, he flicked his hand at his loyal subordinate. If he was going to let him touch his Passive body, he would rather not risk someone entering randomly.

Cross gleefully locked the door, standing by it still to watch as his King and Senpai undressed. He watched as those tar covered bones slowly revealed themselves, shining in the low fire light. However, the younger skeleton noted that the bones looked thinner?

He brushed that aside.

Nightmare moved over to his couch, his face a glowing cyan color. He could feel Cross watching his every move, and that made him nervous and some part of him buzzing with an unknown emotion.

Soon, a bit painfully, he was in his passive form. It had been a minute since he last went into it, so he had to stretch to get used to it. As he stretched, the taller skeleton watched with a fascinated look. He looked so beautiful in his passive form.

He took hurried steps over, soon sitting on the couch unprompted. Nightmare didn't say anything, just a subtle nod.

"Summon your body. I want to touch it." Cross reached forward, trying to pull his King close to him.

"Idiot, don't say it like that." The ex-guardian slapped his hands away, face flushed a gorgeous lavender color.

With an indignant huff, he finally summoned his body. It was as alluring as the last time Cross saw it. Maybe a little chubby though. Still, he reached out again.

He paused when his hands were a few inches away, looking to his King. Perhaps he was being a bit pushy?

The two sat there for several minutes in silence. Each looking at each other with inflamed cheeks. The King broke first.

"Are you going to touch me or not?" Instantly his face grew a bright and more opaque lavender.

The monochrome skeleton laughed, grabbing his King by the hips and pulled him onto his lap. He was a little hard, so he did his best to sit his Senpai away from it. He didn't want to make him uncomfortable.

There, he began rubbing and kissing Nightmare's little body. It wasn't long till he heard the first moan, and even shorter time spent to hear more.

Nightmare's Passive body truly was sensitive, even the simple touches being too much for him. He felt his body being placed onto the couch, but he couldn't think clearly with all the touches and kisses pressing against him.

He moaned and squeaked, doing his best to keep his voice soft. He then cried out, legs shaking as something sinful happened to his weaker body.

Cross cooed as he rubbed Nightmare's clit, wondering what other reactions he could get. He won't go too far. No, he only had consent to touch. Nothing else.

"You look so beautiful, my King~" He purred, kissing one of Nightmare's blushing cheeks.

The smaller skeleton teared up, shaking his head. This made Cross frown. His King mentioned how he didn't like his body. Was it worse than he thought?

The monochrome monster grinned, kissing his Senpai's face. Well, his King saved him when he was about to destroy himself. It would only be right and fair if he saved his King. Though his way was going to be a bit more fun~ And maybe a baby or two if his King allows it~.