I'm NC35, and for a not-over-the-top pink lippie/lipgloss, I would recommend the following:
Flowerplay l/s - sheer tulip pink
Gaily slimshine l/s - sheer rosy pink, very pretty
Plus luxe p/g (I know it looks neon pink in the tube, but it's really sheer and is a face-wakening sheer pink when on the lips) - I know you mentioned you already have full lips, but honestly, these plushglasses do nothing to plump my lips further lol
Flashmode l/g - looks bright in the tube, but sheer pink when applied
The above colors all inhance the natural pinkiness in my lips, adds life to my face without being really bold/bright. All great for soft day looks.
To be honest about tendertones, these only have an "extremely" sheer hint of color on my lips - more or less like a no-colored lip balm on my medium pigmented lips.