After Tang Xiao finished ejaculating, Tang Yin released his dick and showed his cum inside her mouth to Mu Yan before swallowing it.
"Why did you swallow big brother's liquid, Big Sis?"
"Yan'er, we're dual cultivators; his yang qi is beneficial for both my cultivation and my body. When you're ready, we'll teach you about dual cultivation, and you can start swallowing his cum then." Tang Yin straddled Tang Xiao's lower body, held his dick, and pointed his glans at her pussy. "Watch carefully, Yan'er. I will insert your big brother's dick into my body now, and we will immediately start having sex."
At first, Tang Xiao didn't want Mu Yan to watch them have sex, but he realized that she was too innocent when it came to that kind of thing. Moreover, Mu Qingge had already agreed to her daughter becoming his wife, so she agreed to Tang Yin's idea of letting her watch them.
