苦しそうだから…♡　It's cramped and painful...♡ (Pixiv Fanbox)

Wow, it's early in the morning... but you're doing great. Look, the glans are peeking out. Hey, sis! I know, I know... It's hot, so I can blow on it and let it cool down before I I suck on it. That's not what I'm talking about, sis！