It seems Ryan Phillippe and Reese Witherspoon are quite the amicable exes!

According to a new report, Ryan, 41, has invited his ex-wife, Reese, 39, to his upcoming wedding to Paulina Slagter — and his fiancée is NOT pleased the actress may be a part of their special day.

"[Reese] still holds a special place in Ryan’s life as the mother to his children,” a source told OK! Magazine of the parents to Ava, 16, and Deacon, 12. “He not only considers her a friend, but also part of the family."

ryan phillippe and paulina slagter

Ryan and Paulina in December 2014.

Though Paulina, 24, reportedly has a "great relationship with Reese," the insider revealed the law student is worried "her presence would overshadow the big day.” Ryan and Paulina's engagement was previously confirmed after Paulina — who began dating the actor in 2011 — was spotted donning a diamond ring during a lunch outing in Miami in late December 2015.

RELATED: Reese Witherspoon Blames Her Divorce From Ryan Phillippe for Her Career Slump

Ryan and Reese — who also has a three-year-old son, Tennessee, with her now-husband Jim Toth — were married from 1999 until 2007. The Crash star is also a dad to a four-year-old daughter, Kai, from a previous relationship with actress and singer Alexis Knapp.