Peephole

I'm a bit confused about who and where the narrator is. He's a creep spying on teenagers making out, either from a hiding place in the girl's room or through binoculars across the street, but this verse makes me wonder if he's her brother:

"How I laughed
when Mum
knocked on your door"

His use of "Mum" implies she's both their mother, the narrator and girl.
I think a lot could be explained if you made clear what exactly the "peephole" is. A thin crack between wardrobe doors, the eyes of binoculars?
There's a lot of very good writing here. I love how you slowly develop menacing undertones, like the mention of a school uniform in verse three, which leads us to realise that "schoolboy fingers" wasn't a metaphor. And the aforementioned "Mum" verse was beautifully unsettling. The category you put this poem in also adds to the mounting dread. We expect erotic poems to titillate us, but this one gives a vague feeling of shame and degradation, as if we're standing beside the voyeur. If you'd put this in "dark poems" the game would have been up right away.
There's of course some great imagery (there often is in your poems) like the sweat becoming stars in verse two.
Critique is JMHO. Thanks for the read.
By the way, just out of curiosity: why are your recent poems in bold font?

I think it's much better to leave exactly who is doing the spying for the reader to figure.

That way it panders to their own personal perception. If you had a younger brother who was a sneaky little rat then it could be him, or even as you have mentioned yourself a creepy touchy feely Dad grossing out as he spied on you.

Of course, anyone who has used such an opening will know that specific details regarding location must at any cost always remain a secret.

From a writing perspective this omission works, because you now have your own personal picture of the voyeur at work - maybe inside that wardrobe with the creaky door? Who knows, perhaps he or she is watching you now, even as you read this reply.

For myself, I observe that your crits are as insightful as ever.

Thank you Jack ~ Abra(oielleton)Cadabra

Ps - experimentation with fonts and bold for postings a work in progress.
 

Oh you incestuously-suggestive voyeuristic leering lovely naughty man you. You never fail to grab me by the hair and drag me into these twisted tales. It was riveting and funny and wicked.

Thanks for your feedback, Steve. May that yellow hat of yours continue to be doffed in my direction.
Best ~ Abra

Really like this poem....

Thanks Maple W