My Straight Friend Became My Lube Tester | E4

All characters in this story are over 18 years of age.

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Day four.

Fourth bottle.

The silence was different.

Justin entered the apartment without a word. There were no smiles, no jokes, no "what are we testing today?" There was tension. But not the kind of uncertainty that needs to be defused.

It was focused tension.

He knew that today we would go deeper. Literally.

I was already standing by the bed, with the new gel in my hand.

A heavier tube, a deep navy blue color, clearly labeled: penetration-grade.

"This one's not for licking," I said calmly, looking him in the eyes. "This one's for inside."

He froze for a second. But he didn't look away. He didn't back away.

"Okay," he said quietly. "How do we do this?"

I pointed to the bed.

"Get on all fours. In the middle. Like yesterday."

He didn't ask why. He didn't make a comment to lighten the mood. He just nodded and started to undress, sliding everything off calmly, without drama.

He was completely naked when he got on the bed. He knelt down, his hands in front of him, his head bowed. His buttocks were tense, his legs slightly apart.

I took my place behind him, close. Close enough for him to feel my body without touching me.

I unscrewed the gel. Thicker, heavier, it had more body. Smooth, but with that specific resistance that suggested deep slipperiness, perfect for what was about to happen.

I put a portion on my fingers. Warm, heating up from contact with the skin.

Justin sucked in his breath, as if his body already knew that this would not be like before.

And I... I was going to test every one of his limits.

Without rushing.

Without words.

Only with touch.

My fingers were already covered in gel, but I didn't touch him right away.

I moved closer and allowed myself to just look for a second.

His body was tense, perfectly submissive, his shoulder blades outlined, his spine curved in a soft arch, his buttocks raised. He was breathing slowly, deeply, as if trying to convince himself that everything was under control.

I gently placed my hand on his hip.

"Relax. No pressure," I said softly. "Tell me if you don't want something."

He nodded.

With my other hand, I reached between his buttocks and spread them slightly.

I squeezed another dollop of gel directly onto his skin.

The coolness hit him immediately. His body trembled, his buttocks tensed involuntarily.

The gel flowed slowly down, leaving a shiny trail all the way to the entrance.

I slid my fingers between his thighs and began to spread it slowly.

Longer than necessary.

Every movement was deliberate. Every stroke precise, circling around his hole. The consistency was smooth, warm, sticky in just the right way.

Justin didn't say anything, but his body responded clearly.

The first circle. The second, tighter. Then just the center, short, soft presses.

"Weird..." he muttered quietly. "But not bad."

I didn't answer. Instead, I slid in the first finger.

Slowly. With full awareness.

It went in without resistance, but his body reacted with tension.

I stopped. I waited.

I felt his warmth, his pulse, that natural resistance that said "not yet," but didn't reject me.

I pulled out a little. Then back in again.

And that's when his body began to open up.

I started to move.

Slowly, rhythmically. One finger, in, out, in again. Each movement was like a question. And each tension in his body was the answer.

Justin breathed through his nose, deeply, controlling each breath. But he didn't say "stop." He didn't pull his hips back. He didn't run away.

More gel.

A second finger.

I inserted it slowly, feeling distinct resistance, tighter than I had expected. But I didn't push. I gave him a moment. I let him open up on his own.

He trembled. His buttocks tensed, but didn't close. His body reacted as if surprised that it was able to accept it.

"Breathe," I said quietly, close to his back. "That's right."

My fingers were already deep inside. I moved them carefully, first with straight movements, then twisting, changing angles. I felt the internal tension relax. I felt his body begin to respond instead of defend itself.

Justin groaned briefly. A low, throaty sound, surprised at himself.

"Fuck..."

His hips began to move. Gently, almost imperceptibly, but with clear intent, pressing back into my hand.

This wasn’t just a test anymore.

It was desire.

I watched as he clenched his fingers on the sheets. As his breathing quickened, as every contraction of his internal muscles responded to the slightest movement of my fingers.

I moved deeper, with greater precision.

I found a rhythm that his body began to accept on its own.

And then I felt it.

A slight contraction. A response.

I had hit the spot.

I had hit exactly where I wanted to.

That place deep inside him that was like a switch, pulsing, soft, hidden.

Justin froze.

Then suddenly, he gasped for air, as if something had exploded inside him.

"Oh fuck..." he whispered, his voice shaking. "What are you..."

I didn't stop.

My fingers moved slowly but surely. Deeper, tighter, following the exact same path.

With each movement, his hips trembled. His hands were no longer just clenching the sheets, now they were digging into them as if he was trying to anchor himself.

He wasn't touching his cock.

He didn't even try.

And I could feel his whole body begin to gather inside, his breathing shallow, the muscle contractions against my fingers becoming short and violent.

A few last, deeper thrusts.

And then it happened.

He moaned. Loudly. Without resistance.

His body arched, his hips pulled back hard against my hand, and he exploded beneath me, without the slightest touch.

Cum soaked the sheets.

And he fell heavily on his elbows, breathing as if he had just returned from another world.

I pulled my fingers out slowly. Respectfully.

Justin lay with his legs spread wide, all shaken, damp with sweat.

I sat down next to him, looking at him in silence.

"How's the rating?" I asked gently.

He looked at me over his shoulder. His eyes were misty, his face flushed, and his voice still unsteady.

"That gel... and your fingers..." he gasped. "It was too much. In the best possible way."

I smiled slowly.

Because I knew one thing:

He had just discovered something he couldn't yet name.

But his body... already knew.

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