Starkeema Greenidge will likely never try a free make-up sample again after claiming she caught herpes from one.

Bless her heart, but while at the Rihanna concert at Barclays last month, a M.A.C. rep offered her a sample of Rihanna’s successful “RiRi Woo” lipstick.

Unfortunately, the rep apparently didn’t use disposable samples or individual swabs. Now she’s got that permanent bump and has subsequently filed suit to compensate her bank account for the lifelong burn she’s now stuck with.

More from TMZ:

Greenidge claims the rep applied the RiRi Woo, red lipstick — endorsed by Rihanna — to her upper lip, told her to press her lips together and spread it around. The suit claims the lipstick had been previously applied to the lips of others at the concert, and someone had the herp.

Greenidge told TMZ … the day after the concert, “My whole lip was irritated and hugely swollen.”  Greenidge says she went to a doctor and he told her she had herpes.

The suit accuses M.A.C. of shoddy business practices — applying lipstick directly from the tube instead of using either disposable samples or individual swabs.

Greenidge is suing M.A.C. Cosmetics, Inc — not Rihanna — for unspecified damages.

Well damn.

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