a night and a day

[REW]

A night and a day (place holder title)

a sunrise would envy the skill with which (I think you can go without the determiner there)
her curves are gently painted
as gentler still I climb her back kiss by kiss
and pull myself upon her form
to enfold
her neck
her breasts
her abdomen where fingers swim
the glow of her bare flesh
a desperate, passioned leisure
where breaths burn time 
slow and hot
where sentiment makes simple acts
a rite of divine trespass (a rite of divine trespass gets a little cheesy for me)
lips form a transcendent silent language
wherewith my love is spoken
my adoration is unobtrusively sung

fall into me 
like the sun behind the world
to burn all that goes unseen (I am not sure about your word choice burn here.  It seems to me you want a positive word such as light or illuminate.  Burn connotes destruction or damage.  I think you mean that you want to know all of her, right?)
crawl upon me
like the bold unrepentant dawn

I think this is a very sexy poem and intense.  I do not really have any nits or issues except for those that I provided alongside your poem.  I really like your use of the sun to illustrate your piece, evoke the feelings.  Because of your use of sun and the dawn, I am thinking perhaps you might want to begin your poem differently such as with lamplight (to indicate the night as well).  Overall, I think your poem is quite good.  I mention one part being a little cheesy.  That just could be me.  My worst criticism is your place holder title, "A Night and a Day."  Please think of something else more suitable and without two a's and and