She makes him bigger till he notices

Jane decided it was best to grow his dick just a little bit. just to see if it worked without him noticing. She licked her lips when she moved the slider from 15 centimeters to 16. Her eyes lingered on Olivers dick as she saved the changes made. At first she thought it wasn't going to work but to her horny amasement his shaft grew just a little in length. A feeling came over her as she realised she had this power. A feeling of **** horniness. Her breathing became heavy. Oliver stil hadn't noticed his new size or her staring at his now above average dick.

She decided to grow him another centimeter... just for fun... just to see how big her brother could get. She felt excitement through her entire body at the thought of how big his dick could get. How large his bulge would get... Maybe she could grow him till he had a noticable bulge in his pants... a bulge you could see bounce with each step. She could already imagine everybody staring at her brother and his giant dick...

Her hand moved to the slider again. She grew his dick another centimeter. So now he was 2 centimeter above average. Oliver still didn't notice. Jane felt a rush and dared to grow him another centimeter in lentgh and 1 in girth. As she watched the changes unfold she she felt her knees start to go weak. She loved how a big dick could do this to her without even being inside her. She was a true size queen...

Oliver started groaning then.. a manly sound she wasn't used to hearing from him. Maybe the extra size made him more manly..? She then realised he was getting close to cummin. She opened the timer that counted down to his ejaculation.

(Expected time till ejaculation: 0:12)

she panicked.. she didn't want the fun to be over!