Nebulan

In the Transformers universe, a Nebulan is a humanoid who likes to binary bond with robots. Nebulans have the ability to put their legs behind their head, which when they're also inserted into Transformers, gives the robots a power boost or orgasm. Some of them like to lick out the insides of Transformers' necks, while others turn into weapons shooting streams of bodily fluids out of a gun attachment which is remarkably close to where their penis should be, and still others fit into the assholes or Transformers. The Breast Force are female Transformers who have Nebulan companions who hug their breasts. Nebulans have names like Lube.

Also known as Kiss Players.