Your best chance for your seed to implant is
The hot quent of my aunt from Atlantis
When she gets in the groove
You can feel the Earth move –
Chanters rant, but we know the risk scant is!
Quoting without attribution, because I don’t remember where I read it. My suspicion is Asimov.
There was a young lady named Bright
Whose speed was much faster than light.
She left home one day
In a relative way,
And arrived home the previous night.
There once was a woman from Venus
Whose body was shaped like a–
That’s enough, Data.
No limericks, but I once wrote a haiku for each episode of ST: TOS.
Here’s a sample, if folks insist, I’ll share more,
Kirk fights lizard-man.
He wins by showing mercy.
Homemade cannon helps.
The key to the plucky defiance
Of the ragtaggy Rebel Alliance
Is . . . some woo called “The Force” . . . 
Well, this isn’t, of course,
Your hardest of fiction of science! :o
On Saturn, the sexes are three.
Which makes it quite awkward, you see;
For performing con brio
Requires a trio.
(And it even takes two for a pee).
I. Asimov (attrib.)
On Venus, where love’s an addiction
An orgasm’s brought on by friction
Of nose against nose
Or toes against toes
And that’s what I call science fiction!
– Asimov
Digital hive-brain
Flame-war threads will bifurcate
The seizure is grand mal
Data: “There was a young lady from Venus
Whose body was shaped like a–”
Picard: “Captain to security!”
FTFY
Doc Crusher said to her bald beau:
“As long as I’m being your ho’,
Do you want your large mass
A-riding my ass?”
The Captain replied: “Make it so.”
You Methlens have spoken too soon;
When I’ve finished my work with the moon
Your entire snobbish race
Can enjoy my great face,
And you’ll sing a quite different tune.
There once was a Dalek from Skaro
Who almost experienced sorrow
With no eye on his grate,
He couldn’t exterminate
So a plunger he had to borrow
There once was a Gent from Arcturus
Whose skull was so soft it was porous.
It is something to see
When he’s invited for tea
If we spill he can clean it up for us.
“There once was a man from Nantucket…”
“Ah, I see you’ve been talking to Mr. Garibaldi.”
“Why yes, how did you know?”
On Saturn the sexes are tree,
which is awkward I think you’ll agree.
For performing con brio,
you must have a trio
and it even takes two for a pee.