Jia Xin blinked at Jia Yi.
Jia Yi timidly looked at Shen Yuan. Shen Yuan gave her a teasing smile and then extended his left hand to her mouth.
She closely examined the hand with fair skin and distinct joints, and swallowed imperceptibly.
"Try it, it's really tasty,"
Jia Xin said encouragingly.
Jia Yi hesitated for a moment, closed her eyes, and sucked her moist fingers into her mouth.
Imitating her sister, she sucked gently, as if dealing with a melting popsicle.
"Mmm, very good."
Shen Yuan exhaled a long breath of satisfaction.
This washing and protection session lasted for 40 minutes. Aside from letting the twin sisters eat ice pops, Shen Yuan revisited his medical skills to check whether the sisters' undergarments were fitting properly.
As everyone knows, undergarments that are too tight or too loose are not suitable.
Fortunately, both sisters had chosen well-fitting undergarments, though the inspection took a bit long, consuming at least 10 minutes.