Paris Hilton's boyfriend isn't the only one to blame for last night's vehicular run-in with a female photog on the Sunset Strip -- TMZ has learned the shutterbug is actually admitting partial fault in the matter.
The photog -- Carol Williams -- tells us, "I admit I am at fault as much as him" ... adding that she shouldn't have been "out in the middle of the street" in the first place.
Williams is also shedding light on why she thinks Hilton's
BF Cy Waits drove away from Boa Steakhouse
after the incident -- saying, "After he rolled over my foot, he rolled the window down and asked if I was fine ... someone else answered for me and said 'yes' and he drove off."
As we previously reported, Waits was cited for a hit-and-run -- and Williams was treated for injuries to her leg.
Williams tells us she's still a big fan of Paris and notes, "I want to take responsibility for my actions.”
Beware of plastic surgeons trying to exploit the death of celeb plastic surgeon Dr. Frank Ryan -- so say the people running Dr. Ryan's company ... right after they learned about another Bev Hills doc who's trying to swoop in on Ryan's clientele.

The people at Frank H. Ryan MD, Inc. just fired off an email to Dr. Ryan's former patients saying, "Please be aware that any person who attempts to solicit Dr. Ryan's patients is doing so without authorization."
As TMZ first reported, many of Dr. Ryan's patients are furious after another surgeon -- Dr. Gary Motykie -- obtained Ryan's patient list and blasted out an email in an effort to get their business.
Though Motykie's reps tell TMZ they haven't done anything wrong -- Dr. Ryan's people insist that anyone going after his former patients "may be in violation of patient privacy laws.
The couple known as the white house party crashers have threatened to sue the girls on "The Real Housewives of Washington D.C." if they dare to call them "White House party crashers."
Tareq and Michaele Salahi have lawyered up with Lisa Bloom, who fired off an email to the cast of the show, telling them there has been an exhaustive investigative study of the famous White House dinner. The conclusion: "The Salahis did not 'crash' the White House
dinner, nor the Black Caucus dinner."
Bloom goes on to say, "It is simply a false statement of fact, and defamatory, to call the Salahis 'party crashers,' as it suggests they have committed crimes."
Bloom then threatens legal actions if the girls dare use the words.
The Salahis are turning into White House party poopers. Is that actionable?