I have not had the chance to get a solid grip on who is the product of which two ponies or otherwise.
I had assumed a few things and was very surprised when a story HEAVILY implied that the following picture was not entirely accurate.

Is pinkie and cheese the parents of cupcake?
And who else is who?
I know pandora's parents, and the Half dragon named Jasper
I am going to guess that anything with rainbow hair is Rainbow Dash's kids.
Can anybody fill me on on the rest?

5425299 Ok lets see.
Magnolia May》rarity and Aj
June》Bulk biceps and fluttershy
Aerostorm》rainbow x dumbell
Primma Donna (formerly Belcanto)》Sweetie belle and Rumble
Zipperflash》Lightning dust and thunderlane
Truffles Apple》Applebloom and Snails
Cupcake(Big sis), PB and Jam Sandwich(Little siblings)》Pinkie Pie and Cheese Sandwich
Pandora》Twilight and Discord
Skyla》Mio Amore Cadenza(Cadance) and Shining Armor
Artemis》Princess Luna and unnamde hippogryff
Iriscence》Princess Celestia and Queen Chrysalis
Oddball》Cupcake and Pandora
Moondancer》Trixie and Blueblood
Hellspawn(this one isnt cannon she doesnt even have a name yet, but i love her!)》Lord Tirek and King Sombra
There are more but you should go to loppoddity's deviantart and discover them, is worth it, trust me on this

5425299
Snickerdoodle》Beefcake and Paradox (R63 cupcake and pandora)
Love Poison》 Cadance and Discord..... (the most female looking male youll ever see, Love Poison beats Haku from Naruto)
And more as i said once

5425721
LOL Trixie and blueblood? I want to know how the hell that happened XD

5426300 she met him at the grand galloping gala and.....well moony is here so you can guess....hey only trix and blue got your attention??

5426381 lol still hard to imagine him OR her falling any submissive role willingly. Though of the two Trixie has the stronger dominance and easily is the more powerful. So I guess there is not many other ways that could have gone down

5426500 and what about magnolia? Her mothers are Rarity and Applejack? Kinda difficult to imagine who would be carrying her isnt it?

5426524 ... who was the mom?
Lol I would ask how? BUT the answer is probably "MAGIC!"

Though I will be more interested in bow they managed to get to overcoming conflicting personalities
Those two CAN get along but raising a child between them.... they both have VERY strong traditions and would likely raise said children very strictly in their own preference way which would greatly Contrast

5426540 well ill tell you tje dad was Elusive....jejejejejeje..... poor rares.
Also Donut Joe has a son with the waitress of the chapter Rarity investigates which is Iriscence best friend (with benefits)

5426561 illusive? The gender bent version of rarity? OwO

Honestly I am not much for the sexual themes, they make for good humor here and there, but I prefer the whole *and then they wend behind some closed doors* sort of bit.

5426571 as i said that loveable donkey's gallery is wirth to look into

5426598 lol.can I get a link?
And are we really the only two active members of this group?

5425721 wait a sec.... Luna and an unammed hippogriff?
...........

The implications.... are not good.

5426940 well arte doesnt have...so much silver....

5427239 lol still it was the first thing that came to mind

5427243 http://lopoddity.deviantart.com/art/Bugs-and-Birds-619665966
here you go Arte and Irie as babus....oh they are so cute!

5427243 btw almost all stories have some stories so check the info to read them
http://lopoddity.deviantart.com/art/Hellspawn-626370542
and look at the character of the link and tell me its no adorable

5427464 is adorable... but a little off... not as cute as the others ^w^

5427464 add this one to the great pictures XD

Ok... so who is this pitch black earth pony "Bruce" ?