Hidden Spark on Earth (TFP)

Chapter 57

Optimus knew she had caught that, he didn't know if she had been waiting to ask Ratchet, or simply wanted to figure it out herself. "I only found out about it when you were recovering Saphira. There is a good reason why you've recovered so quickly." She relaxed her cheek on his cheek as she listened to him, Optimus smiled and rubbed her back gently, tickling her a little which was comforting to Saphira rather than making her laugh. "Ratchet even only discovered it. It turns out that our bond has already started to form."

Saphira looked into his optics curiously and frowned a little. "How is that possible?"

"Ratchet discovered that there is a small spark signature in your system," Optimus explained, smiling as he thought about it. "A spark signature would signify that you and I are bonded, giving us both the ability to feel the other's feelings and hear each other's thoughts, among other benefits. For you, it would seem it would give you regenerative abilities, which I believe is going to benefit you a lot. Plus, it might keep you from getting sick."

She was surprised by that. She didn't know that was in her system, yet, she didn't know how. "But...we haven't bonded yet?"

"No, but you have laid directly on my chassis above my spark chamber and Matrix." She blinked in surprise and glanced down to his chassis curiously while Optimus continued explaining. "Ratchet has theorized the aura of my spark, or even Matrix, has woven into your system unintentionally. As the aura's organic, it makes sense. So, laying on my chassis while we have confessed love to each other or enjoyed each other's caresses, could have caused my body to activate the start of the bond. And it could still be doing it."

Saphira smiled, the very idea they were already partially bonded was actually really good. She giggled and kissed him suddenly, surprising the bot for a second, but he kissed her back passionately in response. "I guess that means we were meant to be sparkmates."

"It would appear to be that way, Saphira." He kissed her cheek gently, his optics softening slightly with desire. He nipped at her neck gently, making her moan and shudder with delight. "And I have no intention of denying our destiny."

"Nor will I." Saphira arched her back and moved tilts her head for him. "I will never get tired of this...nip harder." Optimus hummed gently and was about to comply when the door began to open. "EEEP!"

She slid from Optimus's hand to the side of his body quickly, Optimus flinched and looked at her with wide optics and cupping her with his hand to stop her from falling off. She scrambled to get her clothes that were by Optimus while he glanced at the door to see Ratchet stepping inside, he was unaware of why Saphira had just shrieked.

"Is everything okay?" Ratchet asked with a frown. He expected to see Saphira on Optimus's chassis, but she wasn't, and Optimus's baffled expression was unusual to the medic. "Where's Saphira?"

Optimus glanced down at Saphira as she scrambled to put her clothes on and looked back at Ratchet. "If you would not mind knocking next time, that would be appreciated. Saphira and I were having...a private moment. She's just getting dressed."

Ratchet widened his optics in horror at what he had almost walked into and glanced at Optimus's side when Saphira looked over his stomach with an embarrassed expression. He huffed and placed his hands on his hips. "I did instruct you to not do anything strenuous."

"It was not strenuous, my friend," Optimus responded in a calm manner, lifting Saphira from the side and shifting to sit on the edge of the berth and placing her on his shoulder. "We were simply..." He paused as he processed what correct word to use.

Saphira rolled her eyes and smirked at Ratchet. "We are doing some exploring, that is all we did." The medic looked like he had paled and he pressed his lips together and muttered something to himself. "Um...oh! Can I ask you something?" Ratchet didn't respond as he was still muttering. "Would the sparkmate bond help me understand Bee?" That got both Optimus and Ratchet's attention. "I've noticed that I have somehow been able to understand some words he's saying."