BOSF 035: Expansion Lesson

It was a hot summer afternoon, past the peak of the heat but not yet dusk. The window in Xiang Yang’s room faced south, spared from direct sunlight. The electric fan hummed in the room, stirring a faint coolness into the warm air. Still, a thin layer of sweat coated Ji Yan’s skin—partly from embarrassment, partly from nerves. Since they bathed together four years ago, Ji Yan had never bared his body in front of Xiang Yang, not even during their intimate moments of mutual comfort when they kept their clothes on.

Now, Ji Yan shed his last piece of cover, offering himself willingly to Xiang Yang.

The door was locked. Li Lilian had taken Xiang Jie to visit a kindergarten, and Xiang Hongxiu, always away for work, wasn’t home. The house was empty except for the two of them. Ji Yan had deliberately chosen this moment—it was his only chance to be alone with Xiang Yang.

After stripping off his own clothes, he reached to unbutton Xiang Yang’s shirt, his face flushed red, his fingertips trembling.

Xiang Yang watched his movements without stirring, not even blinking or resisting. His gaze roamed over Ji Yan’s naked body, like an artist studying their subject before painting, observing every detail with care. His dark eyes were clear and pure, yet the way he looked at Ji Yan seemed to carry warmth and emotion—focused, affectionate.

In just a few short years, both their bodies had changed noticeably. Ji Yan was slim, with long limbs, his skin soft from lack of exercise. For the first time, without Ji Yan’s permission, Xiang Yang reached out to touch his waist. The slightly sweaty skin felt cool, smooth, and delicate under his fingers.

Ji Yan didn’t object. Head lowered, he continued wrestling with Xiang Yang’s shirt buttons.

Xiang Yang gently grasped Ji Yan’s indented waist, as if savoring the feel, sliding his hands up and down.

Ji Yan was a bit ticklish, shivering under Xiang Yang’s touch, but the probing gaze was what made him feel truly exposed, overwhelmed by shame. He grabbed Xiang Yang’s hand, unsure where to place it, then let go and moved on to tugging off Xiang Yang’s pants.

At home, they both dressed simply. The pants had no zipper, sliding off easily. Perhaps influenced by the adult film they’d watched earlier, or by seeing Ji Yan’s naked body, or simply the atmosphere, Xiang Yang was already half-hard. Stimulated further, his erection grew full in front of Ji Yan’s eyes.

Xiang Yang’s usual behavior often struck Ji Yan as cute, but there was nothing cute about that part of him.

Even during self-pleasure, just touching it made Ji Yan flush with embarrassment, let alone staring at it. Each time he touched it, it seemed to have grown larger. Now, he had no choice but to look—not only to understand what to do himself but also to teach Xiang Yang.

Ji Yan only stroked Xiang Yang a few times before stopping, not finishing him off as he usually would.

Xiang Yang, noticing the deviation from their usual routine, looked at Ji Yan with a hint of confusion, then habitually reached for Ji Yan’s erection.

“Don’t touch…” Ji Yan grabbed Xiang Yang’s hand, hesitating to speak further. But having come this far, backing out now would mean no next time. Biting his lip, he guided Xiang Yang’s hand to his backside, pressing his fingers against the hidden entrance. “This time… touch here… like in the video we saw…”

Ji Yan’s face burned, his entire body radiating shame. This lesson felt more unbearable than the summer heat.

Xiang Yang stared at him for a moment, his fingertips brushing the slightly damp entrance, instinctively moving them and lightly grazing the sensitive folds.

Ji Yan felt it, his face flushing even deeper. “I’ve cleaned… and then… you need to…”

He couldn’t finish the sentence, so he demonstrated instead. Guiding Xiang Yang’s fingers to the edge of his entrance, he slipped his own finger inside. “You… you do it like this… go in… expand…”

Straddling Xiang Yang, Ji Yan was so shy he nearly buried his upper body against Xiang Yang’s shoulder, hiding his face. But at such close proximity, their erections brushed against each other, making it even harder to endure.

Xiang Yang stared ahead, hearing Ji Yan’s voice but focusing entirely on his fingers. They touched the recessed entrance, brushing against Ji Yan’s knuckles. As if understanding the lesson, he mimicked Ji Yan, sliding his own finger inside.

“Mmm…” Ji Yan felt Xiang Yang’s finger enter, his mind going blank. His entrance instinctively tightened—a natural reaction to intrusion, even when he did it himself. But doing it himself felt different; someone else’s finger was an entirely new sensation. The shame intensified, and for a moment, he didn’t know how to react. His body stayed tense, the sphincter clamping around both their fingers.

Sensing the movement inside, Xiang Yang instinctively curled his finger, brushing against the inner walls.

A strange mix of shame and sensation surged within Ji Yan. He let out a soft hum against Xiang Yang’s shoulder, withdrawing his own finger and guiding Xiang Yang’s hand to explore further. “Keep going…”

The prepared lubricant finally came into use. Ji Yan retrieved it from his jacket, poured it onto Xiang Yang’s fingers, and had him repeat the taught motions.

Making love seemed like a primal human instinct; the repetitive, monotonous actions weren’t difficult at all.

Halfway through teaching, Ji Yan let go, instructing Xiang Yang to add a second, then a third finger. As the expansion progressed, his prostate was inadvertently found. Kneeling for so long left Ji Yan’s knees and thighs sore, and when that sensitive spot was touched, his body finally went soft, pressing intimately against Xiang Yang’s erection.

Another layer of sweat coated Ji Yan’s body, his breathing slightly ragged. He could feel Xiang Yang’s hardness and how patiently he was holding back.

Ji Yan let out a long breath and finally said, “It’s okay now…”

He had thought about positions beforehand. Given Xiang Yang’s situation, he decided riding was best—it allowed him to stop easily and guide Xiang Yang more effectively.

But this position posed another challenge for Ji Yan.

After a brief rest, he sat up straight again. Holding Xiang Yang’s erection, he was about to align it with his entrance when he noticed Xiang Yang tilting his head, staring intently at their lower bodies, curious and focused. Even during the expansion, Xiang Yang had held his waist, trying to look at his backside, only to be stopped by Ji Yan each time.

“Don’t look…” Ji Yan flushed again, letting go and covering Xiang Yang’s eyes.

Xiang Yang didn’t resist.

But then Ji Yan realized that if Xiang Yang didn’t look, how could he learn? So he let go, his ears burning red, and gave up. “Fine, look…”

Under Xiang Yang’s gaze, Ji Yan spread his legs, gripped the fully erect member, aligned it with his entrance, and slowly lowered himself.