This story is a sequel to Equestria Ninja Girls

Picking up where they left off, the Rainbooms after escaping the planet earth's destruction at the hands of the Triceraton Empire are given a second chance to stop them from destroying their planet. They're transported from Equestria back to their world on board a space ship where the turtles and their friend the Fugitoid set out into space to stop the Triceratons and retrieve the Heart of Darkness.

Sequel to Equestria Ninja Girls. Highly recommend read first before reading this.

SEQEUL: https://www.fimfiction.net/story/295946/dont-worry-we-wont-bite-sequel-to-night-of-the-werewolf

"Stay away from me!" She screamed as her body changed under the light of the moon, her pupils small as pebbles, blood dripping from her hooves, and mouth as they became more wolf like. "I don't want...to...to hurt...you..."

Her body went limp as she fainted, her fur and mane frazzled, paws replaced her hooves, sharp fangs going just past her lips. Vinyl stared in shock as the wolf-like creature lifted itself from the floor with a low growl. It turned to Vinyl, canines bared. It rose its head and let out a loud, mournful howl, and attacked. Vinyl by now had been scared past her wits, and having read a fair amount of folklore herself, expected to be mauled. But instead,

It licked her...

This story is a sequel to Turtles of Everfree

After the death of Master Splinter, the Rainbooms and Turtles team up to take the fight to the Super Shredder with the aim of ending him once again for all to avenge their sensei. Will their combined strength and friendship be enough to overcome the rage and evil of the most powerful mutant they've ever tussled with?

This story is a sequel to Equestria Ninja Girls: The Shredder's End

After defeating Kavaxas, the turtles felt it was some time for a little break. So they join Sunset Shimmer in Equestria to meet some old familiar faces, and gain a little cultural experience. While also dealing with new threats and dangers as well. Still nothing has ever stopped these green ninja machines before, and they won't now.

This story is a sequel to Equestria Ninja Girls in Space

After a mishap with a portal, the Turtles and their human allies find themselves joining the Rainbooms at Camp Everfree where there's mystery and magic in the air. With the Rainbooms gaining new magical abilities, they take their next step in their ninja training to learn to control their new powers and defend their friends from a danger lurking within the camp itself.

Sequel following the events of Equestria Ninja Girls in Space. Recommended to read before this.