Joslyn James has gone public with the details of her affair with Tiger Woods, but one person who knows her extremely well says she doesn’t believe a word of it.

Joslyn’s sister Samantha Siwik told RadarOnline.com in an exclusive interview: “I do not believe anything she said.”

One of Joslyn’s bombshell claims is that she aborted two pregnancies and Tiger was the father. She said in a recent TV interview that she never told Tiger about the abortions.

• TAGS

• celebrity affair
• Celebrity Cheating
• celebrity mistress
• Elin Nordegren
• exclusive
• Inside Edition
• Joslyn James
• Samantha Siwik
• Tiger Woods
• veronica siwik-daniels
• Washington State Department of Social & Health Services