Dear Princess Celestia,

Recently I've conducted some research in the field of sexual activity and different methods of stimulation. I never realized what powerful sensations can come between sexual intercourse between two mares. It's incredible! I also find it incredible how different sexual fantasies, or fetishes, can directly impact arousal. Last night I got to find all of that out for myself with Princess Luna.

Princess, I'm not going to lie, we rutted each other senseless. I actually feel as though some of my brains were bucked out, like I've actually lost a few IQ points from my activities last night. That is how good your sister is, Princess. She's so experienced, it really helped me learn a lot.

I realize that sending you this letter may be a little awkward but you sent me here to study friendship. I realize this is not friendship, necessarily, but I hear that there are many friends who choose to fulfill their sexual desires with other friends. They're called friends with benefits and although I'm still unclear on the nature of the relationship between Luna and myself this one seems to be the most logical conclusion. I could go into more detail, and tell you all about it but it simply wouldn't be the same without the experience. Words can't describe the sensations I felt last night. I'll keep you updated on my progress in this field, Princess.

I have some more 'studying' to do.

Your faithful student,
Twilight Sparkle.

Author's Note

Alright, alright. I've been convinced to write this letter, potentially tying it into a next chapter including a threesome with Princess Celestia. I can't guarantee the threeway, as I hear they're quite difficult to write but I may try. I'm not sure how well this letter turned out to be honest, I knew it wasn't going to be long from the start. Hopefully it's funny none-the-less. But let's take a moment to discuss the over all quality of my work.

It's decent, at best. Don't get me wrong, I appreciate all the compliments and stuff I've gotten but I appreciate the criticism just as much. That's why whatever is published next is going to undergo some quality control, I think. I'm going to try and make it as good as I can. I doubt the jump in quality is going to be extremely apparent right away, it'll take some time for me to improve but just be a little patient with me and I think I can get to the skill level to at least be qualified as 'good'. Like I said though, that doesn't mean I'm not grateful for everything so far. I love writing, I want to get better at it and you, the readers, are the people who help me do that.

And for the record, I don't think this letter is that good.