Looks like Ashlee backing out of her pal Ken Paves' invite to the ElevenSpa opening in Las Vegas was much ado about nothing - we're pretty sure now that baby Bronx didn't break any bones, thank goodness!

An X17online reporter tells us Ash was at Nobu last night where the singer Brandy's 30th birthday party was being held!: "Ashlee went in through the back and left through the back and made a HUGE effort not to be photographed."

Stay tuned for the pix!