common perpendicular

Tang Qin's face turned pale for a moment, then flushed with embarrassment, and the two colors intertwined to form a seductive face.

But he could only stare blankly at Xia Qu's cold hand holding his trembling cock.

Xia Qu looked up at Tang Tan, who was flustered, and moved his hands without cushioning, moving up and down slightly jerky.

The pure rough skin contact made Tang Tan feel uncomfortable, so his brows frowned even deeper.

But when Tang Tan closed his eyes because of shyness, he didn't know that he had an erection.

But Xia Qu could see clearly, and the cruelty in his eyes receded like a tide.

He was sure that Tang Tan hadn't made trouble to the point that he couldn't accept it.

"Look at this again." Xia Qu's voice relaxed a lot, and he got up to bring something new.

"The plastic dropper is a glass product, it is very important not to remember it wrong."

After finishing speaking, he inserted the rubber-tip dropper into a tube of lubrication that he didn't know where he felt it, and sucked it out a little.

"When dripping, keep your hands steady. Shaking randomly will cause the reagent to drip onto the wall of the test tube, just like this..."

With his left hand, he lifted up the bell of Tang Tan's erect cock, and with his right hand, he pinched the rubber dropper to drip lubrication down at a constant speed.

Each hit accurately landed in the mouth of the bell, creating the shape of water splashes.

The ticking sound lingered in Tang Tan's ears.

Accompanied by the sound was the slowly accumulating pleasure, Tang Tan would tremble slightly with every drop.

Xia Qu felt that the dick in his hand was getting bigger and bigger, and he almost couldn't hold it anymore.

"Tick tock... um... tick tock... um... tick tock..."

The groaning and lubricating sounds echoed in the closed laboratory.

Spring is in the air.

Tang Qin found that when he was trembling, the water-stop clamp on his chest would shake together, and the nipples seemed to be bitten by someone and kept sucking hard, causing itching and itching.

The irresistible numbness coming from everywhere is gradually replacing the pain just now.

His brows relaxed a little, but his face turned even redder. Tang Tan was like a crab that was slowly boiled in warm water until it was fully cooked.

Noticing his reaction, Xia Qu buried himself in the darkness and smiled.

After dripping the lubricant on the entire dropper, he stroked it more skillfully than before. There were no other fancy tricks, just the most straightforward manipulation.

More and more pleasure piled up into a mountain, overwhelming Tang Tan, but he had nowhere to vent.

It didn't take long for him to be tortured so much that he almost went crazy, and his eyes were red.

What Tang Tan didn't tell anyone was that he was a virgin.

Don't look at how he always likes to yell at the hostess, and chat dirty jokes with his brothers, but Tang Qin is a real virgin, and he has never even masturbated.

His previous experience made him afraid of such a thing—Xia Qu didn't know it.

But the situation at this moment is something he cannot predict and control.

The two devil whispered words fluttered to Tang Tan's ears in the paradise of pleasure.

"beg me."

Before he could react rationally, Tang Qin's body made the choice for him.

His jaw moved down a little.

But almost instantly, reason caught up, and he immediately bit his lips in regret to prevent himself from making a sound.

But Xia Qu already got the response he wanted.

Just when Xia Qu untied the knot of the rubber tube, Tang Qin immediately shot out whimpering.

He cannot defy the physical pleasure of innate unconditioned reflex.

The soul is emptied for a moment, and everything is comfortable and strange.

The thick white fishy liquid filled Xia Qu's hands.

Tang Qin opened his eyes again and looked at the puddle of liquid in fear.

Tears flowed from his dry eyes until now.