I hate to be that guy, but twice you refered to Sunburst as Sunset.

“Aw, really?” Starlight rolled over so she was facing him now - Trixie glared Sunset down the second she could get away with it without Starlight knowing. “I like watching you two, though, but I’m usually…”

Sunset raised his eyebrows. “That is the most Trixie possible thing you could have taken from this.”

That aside, lovely story with a nice mix of sweet and spicy moments, and the Bond-esque boat sequence was an especially nice touch.