There are different races of demi-humans living among humans now. Some of them are mono-gendered, and they need to mate with other species in order to reproduce. Spike, a student at Ponyville High School, recently applied for "assistance", or mating with members of demi-human species to help them propagate. He gets more than he bargained for when other girls seek him out for "assistance". How will poor Spike handle the situation?

All characters are over eighteen, but some aren't going to look like it.

This is a bit of a loose crossover between MLP and my favorite hentai series "Enjo Kouhai". My favorite character from that series is Ursula Y Ddraig, the dragon girl. It now has six episodes.