the lovers are weeping inside

[brandontoh]

The lovers are
Weeping inside, -- This is already the title I don't think there's a need to repeat them right away.
Lying upon satin sheets,
Ruffled and undone;
It’s a clean spring night,
The dew on the grass relaxes,
The toads croak,
Far off.  -- While it is always good to use rich imagery in your poems, they must serve a purpose. I don't see how the spring night, the dew, and the toads help the poem. It is tempting when writing to want to put in loads of images and words, but they have to make sense. 
They glow like two bulbs,
Pale in the new moon.
The lovers are young,
They’re bodies are supple. -- Their.
Their eyes refuse -- Eyes refuse? How? Why? For these few lines, the imagery works better, but there is no precedent to warrant this reluctance. 
Stripping themselves, each other.
The sharing of flesh is
Unknown to them, 
Black curling hair,
Imperfect,
Various flaws
Show themselves. -- So far a valiant effort has been made to ensure that you adhere to the old 'show, don't tell' adage. However, 'various flaws show themselves', and 'sharing of flesh is unknown to them' break away from the flow of the poem. 
Brownish marks on the skin,
Layers.
Awkward, worried
Their aims unselfish;
He touches her forehead,
Sweating.
Her body flattens,
He hides himself.
A doorway,
Opening,
Slithering,
Exploring.
The lovers are
Weeping inside. -- Why are they weeping inside? I think that you can try to narrow the scope of your poem even more. Focus on one single point and try and form a complete poem on just that one point.