Sorry if this is against rules or something....

You'd find plenty of good stuff simply by using the using the relevant tags. But the first thing that comes to mind is a series that the artist alcor90 is working on.
(The plural is ponies by the way.)

order:score human/feral mlp

order:score human/feral mlp equine

order:score human/feral mlp pony

Asphyxia said:
order:score human/feral mlp pony

thats bad suggestion because unicorns, pegasus and winged unicorns do not get pony tag

Asphyxia said:
order:score human/feral mlp pony

Except "pony" only applies to images with earth ponies, because of site rules. What if Landonyoung also wants to see humans humping pegasi, alicorns, and unicorns? :P

Ruikuli said:
thats bad suggestion because unicorns, pegasus and winged unicorns do not get pony tag

Whoops! Looks like you beat me to it! Only by eight seconds, but...XD

Ruikuli said:
thats bad suggestion because unicorns, pegasus and winged unicorns do not get pony tag

He asked for ponies specifically, so I returned ponies specifically. :P

Asphyxia said:
He asked for ponies specifically, so I returned ponies specifically. :P

im p sure that he meant ponies as in what it means in mlp and not as in what ponies mean in e621 tagging system.

Depending on what gender you want, you can use the [gender]_on_feral tags as well.

For instance, if you want male human on female pony, you could use this:

male_on_feral male/female equine mlp order:score

Adjust genders to your preference, if you have any.

Ruikuli said:
im p sure that he meant ponies as in what it means in mlp and not as in what ponies mean in e621 tagging system.

I've never watched mlp. That may be part of the issue. They have a different definition of ponies then, and it's not stubby horses without wings?