Liz's Miraculous Bodybuilding

Liz flexed her right bicep and gently caressed it with her left hand, feeling how hard her arm had became.

• Oh my, I am starting to become strong! And all this is due to jerking off?! I wonder if this can be true or not...

She looked down. Her now 7 inches dick was almost fully erect and twitching for attention.

• Well, looks like there's only one way to find out! - she said while happily grabbing her stiffening dick.

She then started to vigorously masturbate to her own reflection on the mirror. While stroking her dick with her right hand, she explored her developing body, feeling her new muscles with her left hand. She fantasized about becoming huge with big muscles and taller than everyone else. It didn't take too long until she climaxed, sending vigorous jets of cum to the mirror, so strong that them cracked it. She start to feel a little dizzy and leaned on a chair for a few instants to recover. Soon, she started to feel again that familiar tingling. She smiled.

• It's working!!

Liz felt her body throbbing heavily, her development taking progress. Some minutes later, it ceased. Feeling reinvigorated, she rushed back to the mirror. What she saw left her amazed. In the cracked mirror, there was a wonderful, beautiful tall amazon, with noticeable muscles and a respectable lengthy dick hanging between her legs. She flexed her arms again. Two incredible peaks showed up. With her left hand, she touched again her right bicep and found out that, besides being bigger now, it was even harder. She slid her hands down her torso, caressing her hot new six-pack. Her thighs were much thicker now, with big separated muscles going down to her knees.

She then turned her attention to her new genitals. She grabbed her dick and marveled at how long it was was now. Even now that it was soft, Liz couldn't cover it entirely with her two also bigger hands. She measured it: soft, it was now absurd 9 inches! She held her testicles with her left hand, which were also insufficient to cover them all, since then now they looked like two huge chicken eggs. Feeling horny again with her last developments, she started to stroke herself with her right hand. Yes, that's correct. She was going to grow even more!

She rubbed her dick while massaging her testicles with the other hand. When she became erect, she took the tape and measured herself again. Her hard dick measured impressive 11 inches. That discovery left her even more aroused and she stroked even more vigorously this time, enjoying the extra power that she got from her new muscles. She remembered that day that she caught her brother masturbating, stroking his huge dick. She wanted to become bigger than him. She wanted to become stronger. Taller. Sexier.

With this torrent of wishes in mind, she came again, stronger. She did quite a mess in her room, spilling her abundant cum everywhere. But it was worth the sacrifice. Her development was even more astounding this time, with her dick lengthening to animalistic proportions. Enjoying so much this process, she masturbated three more times, becoming impressively huge. She now had the body of a professional middle-weight bodybuilder. A male one. Her monstrous 17 inches dick hung from between her tree trunk thighs, past below her knees.

• Wow! I can't believe how virile I became! I've just jacked off five times in a row and I could go for it even more!