Random
Source Code
Random
When a woman's nipples become erect. When a woman's nipples are hard. When a woman's nipples are visibly erect and or hard through her clothing.
She was definitely "Nippin Out" as Her nipples were obviously seen through her shirt.
When you are high off cat nip, or any cat nip related product.
When your nipple outline protrudes from your outermost layer of clothing
Last night when John had to walk home in the cold, I noticed him nippin due to the lack of winter clothing.