[Cum inside without pulling out x follow-up piston big climax! Continuous vaginal ejaculation makes semen flow back!] I'm a virgin who witnessed my favorite childhood friend's perky ass panty shot and couldn't resist attacking her with a back piston! I held down her violently and couldn't help but cum inside her because of the pleasure of her first pussy. "What? You came inside me?" she said angrily, so I accelerated my piston to cover it up! Then, she started to convulse and arch her back in ecstasy. "Don't mess with me!" she said angrily, but it seemed like my dick was a perfect hit... an unexpected turn of events!