Again, like your last song, I feel like these lyrics are not particularly well thought out.
'You're hotter than Hell'
'You, the object of my desire'
'You light my fire'
These are all pretty cliche... it feels like you've gone for something that rhymes that's popped into your head rather than working to create an image for yourself. The problem with using something like 'hotter than Hell' or 'you light my fire' is that we've all heard those phrases so many times before that they losing meaning to us. They may have originally been powerful metaphors, but now they're pretty much useless for creating imagery.
Hope that's constructive!