Twilight spent two years planning on how to seduce Princess Luna. It's just a shame she didn't think to plan what to do next.
Chapter 1: First half is a mild comedy. After the dotted line, it's all clopfic. Unicorn Twilight x Luna, in case that isn't obvious. (Clop, movement restriction, F/F)
Chapter 2: Luna goes a little too far in pursuit of fun, but it all works out in the end. (Clop, movement restriction, F/F)
Chapter 3: Twilight returns to Ponyville, then goes to sleep. (Clop, movement restriction, F/F)
Chapter 4: Sweet Trouble - Luna plays with her food and Twilight. (Clop, movement restriction, Food play, F/F)
Chapter 5: Twilight goes to a picnic with her friends
Chapter 6: Twilight returns to her first dream with Luna with new memories. (Clop, movement restriction, F/F, M/F)
Chapter 7: Twilight executes Luna's Plan. Proofread by Knight of Cerebus.
Chapter 8: Luna and Twilight meet in dreams. Proofread by Knight of Cerebus.
Chapter 9: Twilight is summoned to Canterlot. Proofread by Knight of Cerebus.
Chapter 10: Nurse Twilight cares for Luna. Proofread by Knight of Cerebus (Clop, movement restriction, F/F)
Chapter 11: Breakfast with Celestia, lessons with Luna. Proofread by Knight of Cerebus (Clop, movement restriction, F/F)
Chapter 12: Escape from Canterlot. Proofread by Knight of Cerebus
Chapter 13: Stuff happens around the library. Proofread by Knight of Cerebus. (Clop, F/F)
Chapter 14: In another dream, Luna gives Twilight a stallion's body and instructions to be evil. Twilight isn't good at evil. (Clop, M/F)
Chapter 15: A quiet day in Ponyville, and Twilight tries her hand at domination (clop is marked up, no plot after the clop marker, clop is skippable) (Clop, F/F, Movement restriction, mild verbal abuse, mild domination)
Chapter 16: A quick scene following on from the previous chapter and the rest of the chapter is dedicated to Pegasus headcannon. (Clop, F/F, Movement restriction)
Chapter 17: Li'l Twi finds new accommodation and Luna looks for a pet. (Some naughty thoughts but otherwise pretty clean)
Chapter 18: Twilight visit's Li't Twi's new home, Luna is bored in Ponyville and then Twilight makes things interesting. (Clop, F/F, movement restriction, denial, you know what I do by now)
Chapter 19: Luna takes care of Twilight, but they have an argument. Twilight turns to her friends for support. (No clop - a few very broad hints, but nothing explicit).
Chapter 20: The aftermath of the argument, from Luna's POV. No clop or cloplike activities.
Chapter 21: Reconciliation, nothing to upset anyone, I hope.
Chapter 22: A rendezvous with a Nightmare (Clop, F/F, F/M, movement restriction, light spanking all consensual, all marked up)
Chapter 23: NMM vs MMDW (Clop, F/F, movement restriction, spanking, voodoo, the usual.)
Chapter 24: Six Months later. An epilogue. No clop.