@Background Pony #43B6
Many things open their mouth when food is near. I mean it was polite and bowed at the end and all that but that doesn’t mean it intended to regurgitate her or anything.
Honestly, I think Trixie had the manticore tamed, given Fluttershy seems to have had no role in procuring it and the manticore was basically calm and opened his mouth right as Trixie approached. If she didn’t have Starlight on hand, I half-expect the manticore would’ve forced himself to vomit her right back up. Or something.