IN THIS ISSUE: Teen Mom Janelle — DNA TEST EXCLUSIVE

Janelle Evans would like to give her son, Jace, a very special gift this year for his 2nd birthday: the identity of his true father, revealed. The 19-year-old mother, a star of MTV's Teen Mom 2, has asked her ex-boyfriend Andrew Lewis to submit to a paternity test–and she's ready to do whatever's necessary to put the rumors to rest."Jenelle realized that Jace has a right ot know the truth," her best friend, Tori Rhyne – who, like Jenelle, resides in Oak Island, N.C. – tells OK! exclusively.

"She has asked Andrew to take the test in the past, but he's always said no; this time, she told me, she's ready to take him to court and make him do it."

Although Jenelle was in a two-and-a-half-year relationship with Andrew when Jace was born, it's possible the father could be Stephen Fullwood, a former co-worker of Jenelle's.

Jenelle's most recent boyfriend, Kieffer Delp, has also confirmed that Jenelle had, doubts.

"Jenelle wants to believe Andrew's the father, but it's shady," Kieffer says. "Jace looks nothing like him."

FOR MORE ON JENELLE'S DNA TEST, PICK UP THE NEW ISSUE OF OK! ON SALE EVERYWHERE NOW!