Pearce, who worked with Spacey on the award-winning 1997 crime thriller LA Confidential, made the revelation to Australian chat show host Andrew Denton.
"Tough one to talk about at the moment", Pearce said when Denton mentioned his former co-star.
"Amazing actor, incredible actor", he said.
Although Guy Pearce did not say much more than that, he merely insinuated that Kevin was "handsy".
Australian actor Guy Pearce poses for portraits for the TV series Mildred Pierce at the 68th edition of the Venice Film Festival in Venice, Italy, Saturday, Aug. 3, 2011.
And then he added, "Thankfully, I was 29, and not 14".
Pompeo to travel to N Korea for talks with Kim Jong
Secretary of State Mike Pompeo is also rumored to be preparing for a trip to North Korea soon, perhaps as early as July 6. Pompeo's visit comes days after the first in-person meeting between the USA and North Korea over the weekend.
Police in London and Los Angeles are now investigating several allegations against the 58-year-old actor.
Following actor Anthony Rapp's accusations against Spacey in October 2017, he was dropped from a number of projects he was involved with.
Police forces in London and Los Angeles are now investigating a number of claims of sexual assault made against Spacey. The former House of Cards star was accused of sexual assault by three men in the United Kingdom for incidents that allegedly took place within a 17-year span. Spacey has not commented on the allegations beyond his initial apology to Rapp. Spacey, now 58, said he did not remember the encounter but apologised for any "inappropriate drunken behaviour". He claimed the star, then 26, made sexual advances toward him in 1986 when Rapp was 14. Almost all of those alleged incidents, however, occurred years ago and fall beyond the one-year statute of limitations.
"This story has encouraged me to address other things about my life".