Being the Princess of Friendship, Twilight looks for ways to bond with her friends. Deciding that she should just make a spell. This is the outcome. I'd say it worked out well. Spike would beg to differ though. No one really cares about what Spike has to say.

I got bored and wrote giant pony dick porn.
(Warning! Lots of futa and shitty writing)
Picture isn't mine, its Joakaha on deviantart. If he has a problem with it on here then I'll take it down.
No regrets.