Try to break away

You bolt forward suddenly, trying to catch her off guard, but she's ready for you and jerks your arm up hard. You cry out and bend over involuntarily, and she keeps right on wanking you, her cold, strong little hand rubbing furiously up and down your length.

"Uh uh," Natsumi warns you, "You're not going to get away. Surrender."

She rubs herself hard against your ass as she jacks you even harder, but you're trapped in her arm lock, and have no option but to stand there and let the girl work your dick over. You begin to moan as you feel the familiar sensation of impending orgasm, and Natsumi chuckles.