I found that if I pinched Aunt Ling's nipples a little harder, Aunt Ling would gasp and bit her lower lip and resist making noise. Finally, I pinched her harder, Aunt Ling couldn't help it. After humming, she tried her best to purse her lips and suppress her mouth from speaking. She used a very subtle humming voice to cooperate with my movements. We caressed her fiercely in the kitchen until I sprayed her intimate place like this before I sprayed her intimate place.