Day 03 (Sunday):
Cock Length: 8.27 inches (flaccid), 13.42 inches (erect)
Cock Diameter: 1.68 inches (flaccid), 2.56 inches (erect)
Testicle Diameter: 2.77 inches
Cum Amount: ~0.61 gallons (per orgasm)
Lightning got up, made breakfast, then got dressed in her exercise wear to go out running. After putting on her tights, she felt them being slightly tighter around her crotch area. "Damn... These tights must have shrunken in the wash... Oh well. The damage isn't too bad." As she ran, her breasts and butt bouncing with each step, she passed by several cute women, all smiling at her as they ran by. Her self control managed to keep her cock from hardening in her tights.
She stopped at a bench in the park to rest for a bit. As she sat there catching her breathe, a girl with huge M cup breasts ran by. Lightning couldn't stop herself from staring at her. Her breasts were bouncing wildly and her breast fat was pouring out the top of her sports bra. As she ran passed Lightning, she turned and looked Lightning in the eyes, looked down her body, then proceed to flash her a seductive smile, along with a wink. Lightning blushed heavily but smiled back. After she passed, Lightning watched her huge ass, which must have been near 60 inches, bouncing up and down in her tight shorts. The scene must have lasted no longer than 10 seconds, but after she had passed Lightning quickly realized her cock was fully hard, stretching down her thighs to her knee, bulging out her tights so much you could see the veins on her cock through them.
"Oh, fuck!" Lightning quickly tried to cover her crotch with her hands and ran to a nearby restroom. "Fuck! Fuck! Fuck!" She muttered to herself along the way. She got into a stall, locking it behind her and sat on the toilet. "I can't believe that just happened..." She stood up and pulled her tights down. Her cock sprung up and Lightning watched a drop of pre-cum fall from the tip. She bit her lip and was about to grab her cock, before stopping herself. "N-No! I decided to challenge myself... And I am not going to fail like this..."
She pulled up her tights, but before getting them over her genitals, she noticed something off about her cock. Her eyes widened as she realized what it was. "I-Is it bigger?! A-Am I growing?!" She used her hands to measure and found that it was in fact bigger than usual. "Fuck... Is this from not letting myself cum...?" She remembered that it's only the third day and her cock is already noticeably larger. She held one of her testicles and felt them heftier than before also. "I really am filling up with cum... I hope I don't get too big..."
Not wanting to think about it, Lightning closed her eyes and relaxed her body, letting things that would turn her off fill her mind. It took a few minutes, but she had managed to get her cock to soften. She was a bit interested in wanting to measure her flaccid cock, but turned her mind away from the thought and stuffed her cock and testicles back into her tights. She left the bathroom and finished her run, thinking about what might happen to her if she continued the challenge.
Returning home, she showered, then watched more Netflix, making dinner in the midst, until late once more. She cleaned up and slept earlier to prepare for the coming work week...