I thought I knew pretty much all there was to know about the Super Pets seen in the pages of Superman comics back in the Silver Age. Krypto was Superman's dog and Beppo was a test animal of Jor-El's who ended up on Earth. Streaky gained his powers from an radioactive experimental antidote to KryptoniteSupergirl was working on.

I always assumed Comet the Super-Horse was another animal refuge from Krypton that belonged to Supergirl before she made her escape. I just never bothered to look into Comet's history before now.It turns out that Comet is not from Krypton.

He first appeared in Action Comics #292 in 1962. Supergirl had been hit by Kryptonite rays and was falling to Earth. Out of nowhere came a white horse with superpowers that saved her life. It was in the next issue that we discover his true story.

Comet originally was a centaur named Biron who was in love with Circe. When he saved her life, she agreed to repay him. His wish was to become human. When she made an attempt, she gave him the wrong potion (it was actually switched by an evil-doer). Instead of a man, he was turned completely into a horse. There was no antidote but she was able to bestow super-strength, telepathy and immortality to Biron.

What about Supergirl making out with Comet?

Superman received a summon for help from Prince Endor of Zerox (who had helped Superman out in the past). Basically the prince needed a flying horse so Supergirl and Comet made the trip. Zerox was a sorcerer planet (of course) so as thanks, Prince Endor granted Comet a wish. Because magic had changed since he was first turned into a horse, he could reverse the spell...a little.

Comet would not have super-powers and would turn into a human on Earth when a comet passed through the solar system. Upon returning to Earth, a comet happened to enter the solar system. He gave himself the name "Bronco Bill" and soon met Supergirl in this form. And this is when she made out...with her horse.

"Bronco Bill" would make other appearances and apparently even had a brief romance with Lois Lane. Comet was in love with Supergirl but didn't want to tell her that he was also "Bronco Bill." Why did Comet not tell her? Because it would be weird, gross and illegal in most states.

As I put finishing touches to this article, my seven-year-old daughter walked in and I explained what was going on in the images. She had quite a perplexed look on her face and simply said, "That's weird."

This is one of the reasons why reading Silver Age comics can be a fun and interesting pastime. You never really know what to expect. It was a different take on one of the super-pets. It was good that they didn't all come from Krypton and somehow all land on Earth. Maybe Supergirl didn't really make out with her horse. She did but she didn't. The fact that Comet would trick Supergirl many times with this...shame on you Comet. Let's hope for Kara's sake she never comes across a white horse in the current continuity.

I agree with your daughter

I liked the Earth Angel version of Comet, that was a lot of fun

Lol, your daughter is right. That's weird. 

O_o

Comics have gone to some pretty weird places, haven't they?

...I just... I don't know what to...

Can you say super- "bestiality", anyone?

 Ah, the infamous Comet! XD
Pure Silver Age-ism!

Didn't Comet turn into an angel of sorts later on? That horse has gotten away with so much...

bronco bill is very majestic

Must... resist... bareback riding... jokes...

Oh, you didn't know that G-man?  Yeah, the silver age comet was weird, then the 90's comet ramped up the weird by 10. 

Am I the only one who thinks that "Bronco Bill" is the coolest name for a pornstar ever!?? (not only because of the name, he was a horse, we all now what does that mean -and it explains his success with women)

oh silver age, where ever shall your silliness take us next :)

I hate supergirl -.-

Im pretty sure he was also in a more recent comic macking with Supergirl. I think it was in Supergirl Vol.4
Although it could have been someone else horse-like.

Bestiality is hot topic back then

nº1 Power Girl FTW

I can just see, in the current Supergirl comic, Kara and a white horse looking at one another.  Kara says to no one in particular "I'm creeped out, and I don't know why..."

and here i thought i couldn't get any sicker...>.<

Dear Silver-Age Superman stories,

Wow...just wow

It's an interesting article, @GMan, if a bit convoluted in reasoning.

Thank God Crisis knocked out stuff like that from the characters history

Supergirl making out with a horse - that doesn't really bother me.
But a planet called Zerox???????

 What... did I just read? XD

Urgh... I was hoping this bit of history would remain forgotten.

I'll never look at my pony the same way again.

Supergirl and Lois Lane?

Well, you know what they say about guys who used to be half horse!

WOW, someone's been reading Cracked lately...  ;D

Beastality....Grosss.

Well god bless those early Silver Age writers I had no idea how much background I wanted my Super-horse to have.  I was like wow a Super-horse.  I had no idea he was so layered and complex. And creepy.

I didn't know Supergirl had a crush on Sarah Jessica Parker...

So this is why the Peter David version of Comet was so Bizarre in the late 90's SUPERGIRL. In this take, a bisexual female stand-up comic would turn into a horse-looking male humoniod, that Supergirl was at first attacted to. That was David's strange homage to the Silver Age.   

It's corny little nuggets like this that make me roll my eyes when I think of DC sometimes. 

Imagine what family would a horse and superhero be !

Well I guess someone had to be into Bestiality....*shudders*

Hey you guys know what's wacky?  Green Lantern's ring used to not be able to effect things that were yellow.

That's the Silver Age for ya, lmao. 

god so...many...jokes...AAAAAHHH! I HAVE TO GET OUT OF HERE!

And I thought I've heard about all the bizarre relationships in comic books...

Oh silver age DC, you're were godbadawfully horridtrocious in the best way possible ^_^

OH, my goodness. Yeah. Weird.

OH GOD MY MIND *dies*

O.o that`s weird,really really weird ! I think golden and silver age comics are weird ! That`s why I like the modern age most.

This is hilarious.  Last week I was watching the Superman Animated series, and my brother doubted that a super horse existed so I came here to show him the page to prove I was right, and that he shouldn't question my comic book knowledge, lol.

Anyways, since I haven't read anything with Comet in it, I read his bio, and found out he could turn to a human, so I jokingly insinuated that Supergirl and Comet were more than friends, if you know what I mean.  So you can imagine how funny it is that my insinuations were actually true, and Supergirl did have a more intimate relationship with her horse.  Who knew?