My sister has been growing her big tits every day, and she's worried about them. She wears an innocent outfit that shows off her breasts easily, which drives me crazy! When she notices my hardening dick, she says, "Are you excited by my boobs? That's nothing good. You can enjoy them since they belong to Boob Brother." Then she starts sucking on and playing with them...

日々成長して大きくなるおっぱいに悩んでいる妹。僕は無防備な恰好で腕に当たるおっぱいが気になって仕方ない！思わず勃起したチ〇ポに気づいた妹は「私のおっぱいで興奮したの？こんなの何も良い事ないよ。おっぱいお兄ちゃんにあげるから好きにしていいよ」と言ってきて！おっぱい吸って揉みしだいていたら妹も興奮して…。