PHOTO: Vittoria Ceretti put her fingers inside Leonardo DiCaprio’s ass outside a Halloween Party in Los Angeles

Information reaching Kossyderrickent has it that Vittoria Ceretti put her fingers inside Leonardo DiCaprio’s ass outside a Halloween Party in Los Angeles.

Information reads:”Leonardo DiCaprio and girlfriend Vittoria Ceretti spotted outside a Halloween party.”

Quite the handful… LOLz!

But the insider claims they both seemed into it, so hey, whatever floats their boat, right?? Apparently, the only reason they put a stop to it is because they noticed onlookers. We guess they’re not quite into that… LOLz!

Once they realized they were being watched/snapped, however … they put their powwow to a halt and went back inside almost immediately — the whole thing lasted a few minutes.

It’s a rare sighting of affection between Leo and his significant other — we always see him rolling with hotties here and there … but rarely do we catch him showing a little TLC. Probably even less so when it comes to a woman handling him as robustly as VC is here.

We’re told LDC was outside chillin’ by himself — getting some fresh air, it seems — when Vittoria joined him on the deck … at which point they started snuggling up on each other.

Eyewitnesses tell us Vittoria then reached around behind him and stuck her hands down his lower backside — reaching into and underneath his drawers … and apparently copping a feel of his bare ass. From what we’re told … Leo seemed to be digging it — ditto for her too!

In pics obtained by TMZ on Sunday, the Oscar winner and his GF can be seen showing some love in an NSFW way: Vittoria’s hand was shoved down Leo’s trousers copping a feel of his butt! Sources told the outlet the two were at a Halloween house party just outside of West Hollywood on Saturday when the Don’t Look Up star decided to go out for a bit of fresh air. However, the Italian model, who sported a festive red wig, quickly followed him and decided to go for the gold and reached her hand around his backside, INSIDE his undies, sliding in to grab a feel of his bare ass, according to the source.