Lindsay Lohan LLohanS052308_001_X17.jpg

Maybe we should just ask Samantha Ronson!

Us and OK! have feuding reports over the question at hand from LiLo's father, Michael Lohan.

The 21-year-old starlet was recently photographed nuzzling and locking lips with her DJ gal pal on Diddy's yacht at Cannes - and daddy Michael told Us in an email that his daughter's relationship with Sam "is evident to anyone with half a brain." He also says Linds "can make her own life choices. Then it is between her and God."

But now Michael tells OK! in regard to those comments: "I never said anything like this. I've never even looked at the pictures of Linds and Sam, so how can I comment on this? This is just another way of some evil person spreading a vicious rumor to try to hurt my relationship with my daughter Lindsay."

You know he's talking about Dina!