Olivia spent most of the past week telling everyone about her condition and masturbating constantly. All in all, she was more than happy. Her 8 inch rod would end up cumming multiple times each day as it continued its growth.
However, Olivia woke up on Monday and found that her dick was once again erect. This was basically an everyday occurence for her, but something was off. She could feel a pressure, right at the base of her dick. Naturally, she threw the blanket off herself to inspect her dick.
What she saw caught her offguard. Another bulge was forming right next to her first dick... but it was pushing into the skin. Meaning that a second dick was forming alongside her first one and constantly rubbing against her original one. Not only that, the outline she saw made it clear that the second dick seemed to be rotated by a 90 degrees angle inwards, making the glans of her second dick push against the first dick constantly.
Throughout her week, Olivia was basically rubbing her dick with no pause. She struggled to concentrate as her second dick was constantly rubbing and pressing with its speedy growth. Not only that, her average sized balls also seemed to be expanding. If she didn't wear anything to secure them, she could now feel her balls slapping against her thighs with every step.
By the end of the week, her second dick pushed out of the singular dick sheath. While this meant that the constant self-frottage stopped, even getting slightly aroused would put her dicks at full mast. And once they were erect, they would constantly rub against one another, leading to her masturbating very frequently. From the front you could mistake her dicks for one for some reason very displaced and wide penis, but on closer expection you could see the outline of the two dicks when she wasn't erect.