The 90-Day Experiment (The Expiry Date Diaries #1)

Chapter 15

Chapter Fifteen

Emerson

H is voice was sinfully dark when he growled, "I think you might be right, Doc."

My heart thundered with anticipation and wild excitement as I stood, bringing him up with me. The cool air on my naked skin heightened every sensation.

"As you said, we need to be thorough," I purred, feeling bold and seductive.

I slid my hands under his shirt, my pulse racing as I peeled it off. The soft rustle of cloth contrasted with the feverish heat in my veins.

A dark promise shimmered in his smirk. “Anything for the sake of science, right?”

The dangerous glint in his eyes thrilled me. Letting his shirt fall, I traced my fingers down his chest, pausing at the button of his jeans.

I nodded. “I do have a hypothesis that needs testing.”

As I worked on his button, every brief touch sent shivers through me. I felt a surge of power as he hardened even more under my fingers.

I couldn't believe how daring I felt, relishing every second. This wasn't just curiosity; it was raw, unfiltered lust. And for once, I decided to go after exactly what I wanted.

My hands grazed his erection as I slowly lowered his zipper. "Feels like someone's ready for some research," I teased, my voice husky.

His voice was rough. “I’m ready for any experiment you have in mind.”

The denim rustled as I tugged his jeans down, the fabric sliding down his legs and pooling around his ankles.

My eyes widened, heat sparking in me as I saw the erection straining against his boxer briefs. The sight sent a thrill racing through my body, lighting up every nerve.

My knees weakened as desire coursed through me. I tugged down his boxers slowly, easing to my knees as I went.

As he was revealed, inch by glorious inch, my breath caught, eyes widening in awe and lust. "My God," I whispered, trembling. "Liam, you're... enormous."

His cocky smirk made my heart race. "Like what you see?"

"Yes," I breathed, "but I'm a little scared."

My eyes were glued to his massive erection, every thick inch making my blood simmer and my heart pound. The sheer size was mesmerizing, almost intimidating. But something about his cocky confidence, the way he watched me with those heated eyes, made me want to rise to the challenge. Made me want to prove I could handle anything he had to offer.

My scientific mind kicked in, and suddenly I couldn't help but smile, a playful glint in my eye. "So," I began slyly, "I've been thinking."

“Oh?” He raised an eyebrow, intrigued. “And what naughty thoughts have been crossing that brilliant mind of yours?”

I stood and leaned in close, my lips brushing against his ear as I whispered, “I was considering a different kind of experiment.”

“Were you?” he replied, his tone matching my playful challenge.

My smile widened as I nodded, the heat between us practically sizzling. “How about an experiment in physics?”

“Physics?” he echoed, curiosity piqued. “And what hypothesis are we testing?”

“The effects of motion,” I said, as my eyes flicked to the wooden swing hanging from a large tree branch nearby. “Specifically, the pendulum effect of a tree swing.”

He chuckled, excitement building in his chest. “Sounds like a fascinating study,” he murmured. “Shall we gather our research materials?”

My eyes sparkled with playful anticipation. “Ready when you are.”

Liam reached down to our messy pile of clothes, grabbing a condom from his jeans. “Always be prepared,” he said with a cheeky grin.

“Ever the diligent researcher,” I teased, my voice a blend of amusement and desire.

Climbing onto his legs as he straddled the swing, my skin felt electrified against his. My heart raced with excitement and a bit of nervousness as I took the condom from him.

With a wicked grin, I tore open the package. "Ready for the next stage of our study?" I asked, lust and nerves making my breath hitch.

"Fuck yes," he murmured, his breath quick and shallow.

He was more than ready as my trembling fingers rolled the condom on, the touch sending a surge through me. The mix of control and vulnerability made my head spin.

Positioning myself, I gripped the rope above his head for balance. The sight of his chest heaving with anticipation and the desire blazing in his eyes made me feel so wanted. So powerful.

With my chest right in front of him, his tongue darted out and grazed my nipple, eliciting a delighted little squeal as it sent jolts of pleasure straight to my core.

My arms shook a little from holding myself up, but every shiver, every twitch, only made the sensations stronger, more intense.

I had to ease myself onto his cock slowly, pulling myself back up with every inch to prepare myself for the next.

It took several tries before finally, blissfully, I was fully seated.

Liam shifted toward the middle of the swing as I leaned back on my own rope to savor the overwhelming and heavenly stretch of him inside me. His feet still touched the ground, which thankfully gave us a bit of control in this wild experiment.

I grabbed the rope above my own head and used my arms to help as I started to move, slow at first, testing the limits of the swing and our balance. Each motion sent unbelievable sensations through me, intensity building with every fluctuation, every shift.

I ground my hips in circles, then slid up and down his length deliberately. The swing amplified the pleasure with each arc.

"Jesuuuussss," Liam groaned, his voice thick with need.

My breath hitched as I sped up, my hips moving faster. The tension in my body built with each thrust, every muscle tightening with the strain. He held lightly to my hips for balance but let me guide the movements, his trust in me heightening our connection.

“How does that rate on the motion scale?” I panted, my voice trembling.

“Off the charts,” he managed to rasp. “Absolutely fucking perfect.”

The swing's dizzying rhythm was both torturous and divine. Each sway brought us closer to the brink, and I reveled in every second, the fire inside me growing hotter.

Our moans mixed with the swing's creaking, my body moving with breathless boldness. Every touch of skin burned with my craving for him. The friction, heat, and connection consumed me entirely.

“God, you’re fucking amazing,” he growled, his hands roaming up my sides, sending shivers down my spine.

A tidal wave of pleasure built inside me. My movements grew frantic, each breath sharp and quick. The swing's motion intensified everything, the world fading away until only we existed.

In that moment, I was completely his. And the intensity of that feeling overwhelmed me. This wasn't just sex; it was something deeper, terrifyingly real.

My heart thundered, a wild mustang threatening to break free. But the fear of losing control wrapped tightly around me, threatening to choke the air from my lungs. Every cell in my body screamed at me to run, to seek shelter in the familiar terrain of emotional isolation I’d known for so long.

My defenses had always been my sanctuary, my stronghold. But Liam... God, Liam could find every crack, every weak point.

I wanted to retreat back to my old ways, to crawl back into my safe little nook.

But then Liam said the six sexiest words I’d ever heard.