Here is the requested line-by-line translation:
He Yanrong placed Li Zhiyan's hand on her thigh and slowly closed her eyes.
"Aunt, your legs are just too beautiful."
After kissing He Yanrong's gorgeous legs again, Li Zhiyan felt that Aunt Rong's entire being smelled intoxicatingly sweet.
"From now on, Aunt's legs are yours."
"They belong only to you."
"Aunt herself also belongs to you."
As she leaned so close to Li Zhiyan, He Yanrong allowed her emotions to completely overwhelm her, succumbing fully to the flush of romantic passion.
"Baby, from now on, Aunt is yours."
Stepping forward to hold Li Zhiyan, He Yanrong kissed him deeply again.
After a while, Li Zhiyan began planting kisses all over He Yanrong's face.
"Baby, Aunt loves you."
"You have to stay by Aunt's side forever."
In that moment, He Yanrong's possessiveness surged uncontrollably.
"Baby, should Aunt wear stockings for you?"