I think they're Saddlebacking

Wow....that blue unicorn is giving it to him good. Look at the sign of struggle in his eyes. I'm surprised they didn't tattoo sweat coming off of him.

Well that answers which came first.......

(oh I thought this was a caption competition)

Also known as the Pelosi-Obama scandal. Even got the cigarette down.

As far as I can see from here, either the blue unicorn has a thin cock or the pink one has a long road behind him.

Maybe the evil cigarette has kept him/her/shim very relaxed.

As for the sweat, Dickus, you can't see it but it has run where the blue paint has faded from the unicorn's hair.

Uh, and I think the tattoo is real... I've seen it in a list of unfortunate drawings in a tattoo magazine.

I think the blue one is a horse...

as for the size of parts, well, Leo, you have a different view from Brazil since you're further south, so I'll take your word for it...

What a bunch of perverts you all are.

Clearly, the blue unicorn is saving the pink one from plummeting towards the earth, as the blue one is the only one with wings. Along with being an inconsiderate flyer by smoking, the pink one is also quite heavy, thus the intense strain in the blue unicorns eyes.

If only your mothers could see you now.

Okay... we're talking shit... The blue on is a Pegasus... Look at the wings...

Paul... if my mother saw this pic she would ask why someone would tattoo a couple of horse fucking on his/her back.

Uh... and that's what happens somewhere over the rainbow.
Now I know why around here old people say to kids that is dangerous to go under the rainbow or look for it's end. Maybe they've been there...

"Dungeons and Dragons II - Uni's Boogaloo"

How did I miss the wings?

Okay, so we have a new phrase..."hung like a Pegasus"...and if we go with Leo's initial thoughts, that's not a compliment...

Leo--I love the D&D II one....

I'm hoping that this is a tattoo urban legend....

Hahahah... I also thought it was a caption competition... by the way, lots of non caption competition posts end up as one... why not this?

Thinking different, not diminishing the Pegasus' power this time, maybe Uni is skilled in tantric sex and pompoir and she's showing him how powerful can it be.
She's beating 'something' off of him without sweating.
The cigarette is just to show how smoking hot Uni is when she goes to the terms.

For more tattoo goodness check The Top 10 Most Stupid Tattoos on the YBNBY search. Or just look up Tattoo on this site. Much fun to be had.