<P> Nikki is known for her rivalries with Ashley Abbott (Eileen Davidson), Jill Abbott (Jess Walton), Sharon Newman (Sharon Case) and Diane Jenkins (Maura West). She fought with Diane over Victor for years as their bitter rivalry climaxed; she later killed Diane in self - defense in August 2011 . Scott didn't think Nikki should have been the killer in a whodunnit? storyline . She stated, "Nikki has always hated Diane and because Maura is so good in the role, Nikki hates her even more now ." Sharon is Nikki's former daughter - in - law, having been married to her son Nicholas (Joshua Morrow) for over a decade . Nikki later became outraged when Sharon had a brief romance with Victor . Luke Kerr of Zap2it said: "It's always reassuring to know Nikki will usually jump to "blame Sharon" for just about everything . Based on their past, it's not surprising, but it's a comfort food type Y&R trope ." Nikki and Sharon even ended up in a physical fight in the Newman stables over Victor in 2012; Jillian Bowe, also of Zap2it, called it the "Newman Divas" face off, and said, "Victor's ladies go for blood . It boggles the mind these two sophisticated women are fighting over Victor's giblets and gravy ." Scott stated that she loved the Newman stables fight, saying: "Our director was very gracious, and was very loose and not rigid about blocking, and let us do our own choreography . So, if you look at it again, there are many elements of an I Love Lucy episode . Guess where that came from? But I couldn't resist it . I had to do it! All the water and hair pulling and dunking in the bucket, that was all me, because that was "Lucy"!" </P> <P> Amid her rivalries with most women in Genoa City, she is close with the show's matriarch Katherine Chancellor (Jeanne Cooper), Scott said that "Katherine and Nikki have a very special relationship, and they have a very special heartbeat". However, off - screen, there was a period of time in which Scott experienced a "rocky" relationship with Cooper . Cooper explained: "It was just some silly thing, I guess (...) You think it's strange . You should have been me! I mean, here is someone who is like a daughter to me . I really was very protective of her". </P> <P> Nikki was introduced with her sister Casey in 1978 . The following year, she killed her abusive father Nick Reed (Quinn Redeker) in self - defense after he drunkenly tried to rape her . During the murder trial, Jill Foster (Brenda Dickson) hired a Nick look - alike named Joseph Thomas to scare Nikki and Casey . Following the trial, she dated Paul Williams (Doug Davidson), but it ended after he gave her a venereal disease . Nikki would go on to romance Greg Foster (Wings Hauser). While Paul opposed the relationship, she ultimately married Greg . Rose Deville (Darlene Conley) signed Nikki to a "modelling agency" which was later revealed to be a prostitution ring . Nikki resisted a customer, who later had a heart attack . A man named Tony was charged for the murder, with Greg representing him . Nikki was threatened not to testify in the case or Greg would be killed . She decided to leave town, but returned a little while later . Nikki would later join the New World Commune and Paul would join her . However, they discovered that it was actually a cult, and Nikki would become pregnant after being raped by a cult leader, Ian Ward . Steven Williams and Peggy Brooks worked to expose the cult, and Nikki ended up escaping to Chicago . She gave birth to the child, later to be known as Dylan McAvoy, in a church, but passed out during labor and the nuns took the baby away . Greg, thinking Nikki and Paul had reunited, divorced Nikki . Once Nikki returned to Genoa City, she became a stripper while romancing Kevin Bancroft (Christopher Holder). Kevin's mother Allison Bancroft (Lynn Wood) hated Nikki, and bought a pornographic film titled Hot Hips, purportedly starring Nikki, hoping Kevin would leave her, which he did . A criminal named Tony DiSalvo distributed the film . Nikki married him in hopes of getting her hands on the film rights, and later found out she wasn't even in the film . Paul and his partner Andy Richards investigated Tony and killed him . </P> <P> While still a stripper, she had a fling with rich business tycoon Victor Newman (Eric Braeden), and became pregnant with his child . Initially, however, Nikki believed that the child was Kevin's, but it turned out to be Victor's . She gave birth to Victoria in 1982 while still married to Kevin . After Tony's death, Victor moved on with Lorie Brooks (Jamie Lyn Bauer), while Nikki hooked up with Rick Daros . Unknown to Nikki, Rick killed his first wife and intended on doing the same to Nikki . Once Victor learned of Rick and Victoria's true paternity, he, Paul, and Andy rushed to St. Croix to save Nikki . In a gunfight, Rick escaped while a shot Victor professed his love for Nikki and proposed . Once Victor recovered, he and Nikki married in 1984 despite interference from his ex Eve Howard . Eve had previously tried to kill Nikki before the wedding ceremony, later running off with Rick Daros . Victor and Nikki's marriage was strong until he had an affair with Ashley Abbott (Eileen Davidson), the sister of rival businessman Jack Abbott (Peter Bergman). At the same time, Jack was attracted to Nikki, and they began an affair . Victor left Nikki for Ashley who ended up pregnant, but secretly had an abortion . Nikki schemed to break up Victor and Ashley by using Matt Miller (Victor's brother) to seduce Ashley, but failed . Nikki was soon diagnosed with a terminal illness bringing Victor back . Once she recovered and lied to Victor about it, Victor returned to Ashley until he learned of her abortion . Nikki ended up giving birth to a son, Nicholas Newman (Joshua Morrow), but shortly thereafter Victor divorced Nikki thinking she was involved in Jack's role in a tell - all biography about Victor . Unknown to Victor, the book was actually written by Leanna Love (Barbara Crampton). </P>

Nikki's sister on young and the restless