Swairini

swairini; A wanton woman (swairini), one who is not a Brahmin, a veshya(a prostitute) or a nishkasini (slave who has been discarded by her paramour): intercourse with these is permissible when they belong to a lower order but not when they belong to a higher order. When, however, any one of these is a bhujishya (exclusively kept by anyone), although intercourse with them is permissible, one must not approach them as they are in the exclusive keeping of another.