A soft knock on the door woke me up. It was only nine o'clock, and Liam never showed up at that hour without a reason. When I opened the door, he was standing there with a notebook under his arm and an expression that revealed yesterday was still on his mind. He walked in without asking, sitting on the edge of the couch as if he couldn't sit still.
"I've gone over all the notes," he began, flipping the notebook to new pages filled with notes in tiny handwriting, arrows, and observations about muscle tension. "The conclusions are clear. Jack is responding to you faster than I expected. Much faster."
I smiled to myself. It was obvious to the naked eye.
"Go on."
Liam swallowed, as if he were about to announce something more serious than just a routine phase of the project.
"Today we need deeper stimulation. We need to see how Jack reacts to oral contact."
His tone was scientific, but his eyes betrayed that this wasn't just about "stimulation."
"So, oral?" I asked calmly.
He nodded.
"We need to see how his breathing, muscle tension, and reaction time change. Especially since…" he glanced at his notes. "yesterday, he was losing control just from looking at you."
The words hung between us, heavy and full of subtext.
"Let's get started," I said, and he immediately stood up, as if he'd been waiting for just that.
We headed together to Jack's room. Before I could even knock, the door swung wide open, as if he'd sensed us coming from a distance. He was standing there in his boxers, his erection clearly visible through the fabric, a half-smile on his face that said it all.
"Shall we begin?" he asked, leaning against the doorframe.
Liam immediately switched into "scientist" mode.
"Yes. Stage two," Liam said. "Oral contact.Matt will use his mouth and tongue to stimulate you while you describe your sensations. I'll observe your reactions."
Jack looked at me, and his smile widened.
"Sure. That's exactly what I was hoping for."
Without a moment's hesitation, he slipped his thumbs under the waistband of his boxers and pulled them down. They fell to the floor, and his cock sprang up slightly, hard, ready, already reacting.
"We can get started," he said, looking straight at me.
Liam barely said a word, but I saw his hand clench the notebook tighter than before.
Jack was ready.
Liam was more invested than he wanted to admit.
And I… I knew I'd run today's session in such a way that they'd both forget this was a "project."
Jack sat down on the bed as if he'd done it a hundred times before. He spread his legs freely, confidently, without shame; his body was open, ready, aware that it was meant to be watched. In the morning light, he looked even more intense: his thighs taut, his stomach trembling slightly with arousal, and his cock hard as if his body had started reacting to us before we'd even entered the room.
I knelt between his thighs. That moment is always electric, the difference in height, the closeness, the warmth of the skin, the scent. I always feel the temperature between us rise by a few degrees then. Jack looked down at me, not like someone in control, but like someone who was surrendering himself to me fully and consciously.
Liam positioned himself to the side, at a distance that was too close for a scientist and too far for a participant. He held a notebook in his hand, but his gaze was fixed on our bodies.
"Matt… before you start," he said, his voice trembling slightly, "touch him with your tongue. We need to test the sensitivity of the tip."
I nodded. Slowly, I leaned in and touched the tip of my tongue to the head of his cock, one gentle, controlled movement, brief as a promise.
Jack reacted immediately.
A sharp intake of breath, his shoulders jerked, his stomach tensed, and his eyes fluttered shut for a split second.
Liam took a step closer, as if he'd forgotten that he was only supposed to be observing.
"Quick reaction," he noted, without taking his eyes off Jack. "Sudden tension in the shoulders and stomach."
Jack sighed heavily, swallowing hard.
"You haven't even done anything yet..." he muttered, his voice sounding more like a plea than a comment.
Liam straightened up and added in a tone meant to be professional but came out too soft:
"Matt, take off your shirt. Yesterday, his reaction intensified when you exposed your torso."
I didn't say anything. I just reached for the hem of my T-shirt and slowly pulled the fabric up. The second my chest was fully exposed, Jack sucked in a breath like someone trying to stifle a moan.
His cock twitched noticeably.
His thighs tensed like strings.
And that's when I realized: he'd been waiting for this moment since early that morning.
Liam was jotting something down quickly, but in his eyes I saw the same thing I'd seen yesterday, a fascination that was no longer purely scientific.
And I, kneeling between Jack's thighs, could already feel in my body that phase two would be far more intense than Liam had planned.
I leaned in slowly, letting Jack watch every inch of the distance closing between us. I knew it worked on him almost as much as the touch itself. I placed my hands on his thighs, spreading them just a little wider. His muscles reacted immediately, tightening in warm, trembling waves.
I took the head of his cock into my mouth.
Slowly.
Deliberately.
Jack moaned immediately, briefly but intensely, as if his body hadn't had time to stifle the reaction. His hips twitched slightly forward before he stopped them, and I simply tightened my lips around him.
Liam leaned forward slightly, a notebook in his hand, though he looked as if he'd forgotten he was holding it.
"Jack… where do you feel it the most? In your lower abdomen? In your balls? In your thighs?"
Jack tilted his head back, and I felt his stomach begin to tremble as my tongue moved slowly along the underside of his cock.
"In... my stomach..." he managed to gasp. "It's getting hot..."
Liam jotted something down, but his eyes were glued to the spot where my lips were moving in a rhythm that was beginning to dominate the entire scene.
I took him deeper.
Jack reacted instantly. His fingers tightened in the sheets, his thigh muscles tensed, and his breath broke halfway through.
Liam kept talking, but his voice was lower, as if he were losing his breath himself:
"What happens to your breathing… when Matt speeds up?"
In response, Jack moaned so deeply that I could feel it in my own throat. His hips moved involuntarily, trying to take me deeper. I just held them gently with my hands, just to guide the rhythm, not to hold him back.
I changed the rhythm again, slow, deeper, sucking harder, then quicker movements that Jack felt all the way in his stomach.
"Do you feel like you're losing control of your hips?" Liam asked.
Jack tried to answer, but only his body gave the answer: his hips were moving in short, unconscious motions.
His hand slid down to my hair. Not to guide me.
To hold on.
Liam jotted down quickly:
"The intensity is increasing. Matt… a little deeper."
I glanced at him out of the corner of my eye.
He had stopped being an observer.
Jack had stopped being just a participant.
And I… I was the one leading them both.
I slid him into my mouth all the way to the base, slowly, controlling every inch.
Jack let out a sound that was neither a moan nor a word, more like pure, raw surrender. His body froze in tension, as if he were trying to hold back an explosion that was bound to come anyway.
I moved into deep, rhythmic motions, feeling his cock pulse in my mouth, the heat, the tension, the closeness, everything building at a fast, unstoppable pace.
Liam stood to the side, almost forgetting to breathe.
"Reactions... intense..." he mumbled, jotting something down quickly. "Matt, keep up the pace."
As if he needed to tell me that.
I tightened my hands on his hips and drew him in just a little deeper, letting him slide farther into my mouth than he expected. His body shot forward, his shoulders tensed like ropes, his stomach twitched in a few rapid contractions.
And then it came.
Jack threw his head back violently, and his hips lifted forward involuntarily.
A moan escaped his throat, low, uncontrolled, long.
A stream of hot semen hit deep inside my mouth.
Once.
Twice.
A third time.
He couldn't stop trembling. His thighs tightened against my shoulders, as if he were trying to hold on to reality. I didn't pull away even an inch. I swallowed everything, feeling his body pulse against my tongue, beneath my hands, everywhere.
Finally, he collapsed onto the bed, exhausted, flushed, spent. His stomach rose and fell unevenly, his body still trembling in short, uncontrolled waves.
Liam wrote something down slowly, carefully, but his voice was different than usual, lower, more hoarse:
"The release occurred during deep oral stimulation… intensity ten out of ten… reactions complete, uncontrolled… Matt was responsible for ninety percent of the reaction…"
He looked up from his notes.
His eyes already held everything he didn't have the courage to say.
Jack, half-conscious, smiled only slightly.
"Tomorrow… I want more."
And Liam added:
"Tomorrow we'll move on to zones… deeper than the mouth."
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