Eating My Sister's Pussy*

However, as a man, Haruto couldn't help but feel like it wasn't enough. His body betrayed his thoughts as he felt his erection pressing against her, and of course, Haruka noticed — her face flushed, heat rushing to her cheeks as something hard touched her stomach.

"Brother… are you really hard just from kissing me?" Her voice trembled, the words hesitant as her gaze darted to the side. 

It was an embarrassing question, one she wasn't sure she had the courage to ask, but the curiosity got the better of her.

Haruto awkwardly rubbed the back of his neck, a sheepish grin tugging at his lips. "Well, that's just a normal reaction for a man," he said, his tone light but honest. 

"And haven't you said yourself that you won't back down?"

"Y-yeah…" Haruka bit her lower lip, her fingers fidgeting with the hem of her shirt. 

"I'm just… happy that you're not turned off by me. I was worried that maybe you couldn't even touch me."