Lester Cohen / WireImage 1 / 12
Lester Cohen / WireImage 1 / 12

As if it couldn't get any nastier! There is no love lost between former couple Ciara and Future and now she's asking a judge to get involved in their vitriolic feud.

Ciara has filed a $15 million defamation and slander suit against her baby daddy, claiming that he is destroying not only her namesake, but also that of her current boyfriend, NFL Quarterback Russell Wilson.

In court documents, obtained by TMZ, the brunette beauty says Future has bashed the new couple in multiple interviews and on social media.

She claims that he's dragging their names through the mud to promote his own music.

In the suit, Ciara calls out Future for a radio interview in which he discussed a paparazzi photo of Russell pushing Ciara and Future's son, also named Future, in his stroller. In the interview Future said, "She probably set him up. You letting them catch that photo. Leave my son out of all the publicity stunts."

The suit cited other times in which he used profane language about her, as well.

In January he tweeted, "This b---- got control problems ... I gotta go through lawyers to see baby future ... the f----ery for 15k a month."

Ciara claims that her ex sees their son plenty, saying he's had at least 19 visitations (sometimes spanning several days) within the past 14 months.

The songstress wants her ex's nasty tweets deleted and wants a judge to order him to refrain from saying anything about family matters regrading their son in future tweets.

TMZ has video of Future Sr. apparently being served court papers at LAX as he arrived. The process server was carrying photos of the rapper for identification.

Ciara and Russell began dating in the summer. They seem as happy as ever.

On Feb. 1, the NFL star posted an image to Twitter of himself holding his girl while in Hawaii for the NFL Pro Bowl, where he won MVP. In the snap, Ciara is holding an envelope in her hand while wearing a Hawaiian lei.

"Where you wanna go baby!!!?" he captioned the snap. "Tickets for 2...Anyplace in the world...You decide."