He gave a grunt of satisfaction and shoved harder, driving six inches of his length into her tight anal cavity.

It was the exact same depth he’d managed yesterday, and the realization only made him more frustrated.

He wasn’t settling for the same old thing today. He grabbed Suna’s shoulders with both hands, bracing himself, and delivered one sharp, powerful thrust.

He managed to gain another inch, but he felt Suna’s body seize and heard a sharp, stifled gasp.

She twisted her neck around, her face showing a clear wince of pain. "Kael... is it all inside now?" she panted, her voice tight.

She was desperate for the answer to be yes, because she could feel every inch of him stretching her walls to their absolute limit, and she didn’t think there was a single speck of room left to accommodate any more of him.

Kael flashed a devilish grin and said, "Almost, Aunt. Just another inch to go."

Suna looked completely stunned. She remembered clearly that she had bottomed out at this exact point yesterday.

She couldn’t wrap her head around why it was so much harder today. She decided to call him out on it right then and there.

"Wait, Kael! Yesterday you stopped right here. Why isn’t it all the way in today? Don’t tell me you actually managed to grow even bigger in just one day?"

She had always known Kael had one of the longest cocks she’d ever seen.

Honestly, she suspected he might have the biggest dick in the entire town of Korua.

Even with that, she had been totally sure she could handle every last inch of him. Now, seeing the skepticism written all over her face, Kael knew he had to play this right to keep her mind off the physical strain and focused on his Words.

Kael put on his best sad, regretful face.

"Sorry, Aunt. I lied yesterday. I didn’t want to make you feel uncomfortable because my dick is so much longer than anyone else’s. I honestly thought it would really hurt you if I tried to go any deeper."

The second the words left his mouth, Suna’s expression softened completely. She felt a surge of affection for him, ignoring the burning sensation in her ass.

"Oh, my sweet boy, you care so much for your aunt," she cooed.

She kept one hand pressed against the floor to steady herself and reached back with the other to stroke Kael’s cheek.

She knew she had to salvage his ego, even if she had to tell a little lie to do it.

"No, Kael, there’s nothing wrong with your penis. Honestly, lots of men in this town are just as big as you. You don’t have to worry about a thing."

She said it with a smile, doing her best to sound convincing, even though she knew it was total nonsense.

She just didn’t want him feeling insecure about his size, especially when she was the one currently being stretched to her breaking point by him.

Suna saw her efforts pay off when Kael finally gave her a small smile, but she wasn’t done yet.

"Okay, Kael, we can work on this," she said, catching her breath. "But tell me something—if you were so worried about hurting me yesterday that you didn’t go all the way in, why are you so dead set on burying it all today?"

Dammit, woman, why do you have to be so smart right now? Maybe that’s exactly why your tits aren’t anywhere near as big as my sweet mother’s.

Kael thought, feeling a flare of genuine annoyance. He’d been caught totally off guard and didn’t have a backup plan ready.

He stayed silent for a long, heavy minute, his dick still stretched deep inside her, before he finally spoke.

"Aunt, it’s just... I tried it with Mom yesterday, and she took every single inch of me inside her ass without any trouble at all. I guess I just wanted to see if you could handle the same amount."

Kael knew he was playing dirty by dragging his mother into it, but he was desperate for an excuse.

He knew exactly what he was doing—twisting the knife into the one sore spot he knew she had.

Even though his earlier compliments had dulled her jealousy for a moment, that deep-seated, competitive rivalry between the two women was far too strong to disappear overnight.

He watched her face, banking on the fact that her pride wouldn’t let her back down now that he’d framed it as a contest between her and his mother.

Sure enough, Kael saw that telltale glint in Suna’s eyes. The competitive fire had been lit.

"Then, sweetie, can you tell me what else your mom allowed you to do to her?" Suna asked, needing to know the exact terms of the "competition" before she made her next move.

"Okay," Kael started, spinning his web.

"First, she let me inside her bum. I was able to bury it completely, but when I tried to start humping, she couldn’t take the full depth.

She ended up offering her mouth instead, but she couldn’t take all of it there either, so I had to settle for humping her with half my length deep in her throat."

Kael delivered the lie with a straight face, masterfully blending a few grains of truth into a fabrication designed to challenge her pride.

"Thank you, Kael. For telling me all this," Suna whispered, her mind racing.

She was genuinely astonished by the secret life of the mother-son pair, but more importantly, she now had a clear roadmap.

She knew exactly where Amber had reached her limit, and she was already visualizing how she would triumph over her sister.

"Okay, Kael, don’t you worry—your aunt is here for you," she said, her voice dropping into a tone of intense determination.

"You’re going to be able to hump me easily, far better than you did with her. Let’s start by getting every single inch of you inside my ass."

Kael saw his plan working perfectly, the competitive fire in Suna’s eyes burning bright.

He refocused, gripping her shoulders again and throwing his full strength into one more desperate, grinding thrust.

"Ahhh!" Suna let out a jagged cry, her breath hitching as it felt like her insides were being ripped apart. The sharp, agonizing pressure was too much.

The wave of confidence she’d felt just moments ago—the belief that she could outdo Amber—shattered against the harsh reality of her body’s physical limits.

*****

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