Ye Yunqi knew they didn't have much time, so she pulled Ye Fei's member out of her mouth, held it with her hand, and once her sister was straddling him, she guided it to her sister's wet pussy, gently rubbing the head against her sister's delicate slit, and then said, "Sis, you're all set!"
With her sister's signal, Ye Yunying forcefully sat down. Unfortunately, her pussy had only been penetrated by her brother once before and couldn't accommodate such a large member all at once.
After taking in about half of it, she couldn't go any further and complained, "Ouch, bad brother, why are you so big?"
"Who told you to be in such a hurry?" Ye Fei laughed, knowing his sister wouldn't be in too much pain but just needed some getting used to. He then wrapped his hands around her waist and started moving his hips, allowing his member to slowly slide in and out of her tight, wet pussy.