刺激乳头
Any stimulation of the [[nipples]]. 

h4. See also

* [[nipple tweak]]
* [[nipple pull]]
* [[nipple rub]]
* [[nipple torture]]
* [[biting nipple]]
* [[nipple flick]]
* [[nipple press]]
* [[nipple push]]
* [[nipple injection]]
* [[nipple fingering]]
* [[licking nipple]]
* [[vibrator on nipple]]
nipple stimulation