Edit
When both breasts are pulled out through or above clothing. Use one breast out when one only breast is exposed.
Don't use when the character is nude or topless, or when the shirt is lifted up above the breasts or is completely open. This tag is for when the breasts are pulled out of the character's top.
Examples
See also
The following tags are aliased to this tag: breasts_out_of_clothes and breasts_outside (learn more).
This tag implicates breasts (learn more).