It is always desired and attractive to have smooth silky lips. Some ladies prefer plump lips as well.
As your Beauty Expert what I recommend is for the date where you know there will not be smooching and you want to impress and have luscious lips: wear a lip plumper, this gives lips fullness and a rich amount of gloss. This rich amount of gloss will make your lips look amazing.
For the date when you know there is a greater chance of lip interaction, it would be more comfortable to do a lightweight, no gloss, high shine lip product, typically known as a lip lustre.
Hope these tips help and you are as smooth as your lips!