I wear a couple of MLBB lipsticks. I sometimes wear a lip pencil first. I have an average lower lip and a thin upper lip. I don't try to change the size of my lips. My experience has been disastrous when doing this.
Lip Pencils
Bobbi Brown in Bobbi (same as Lisa p)
Clinique in 07 intense blush
Bobbi Brown in Naked
Lipsticks
NARS in Dolce Vita
Clinique in 02 Bare Pop
Smashbox in Covet (I don't think this is available anymore)
Bobbi Brown in Brown
I have eczema which flares up around my mouth. I have been trying to eliminate the nasty culprits (citrus fruits, tomatoes, bee products, etc.). I use CerVa Night Time Lotion to soothe my lips instead of lip balm. I find that is a nice base for lipstick. I also drink lots of water. Seems to help plump my lips.
I feather the lip pencil around my lips (not outside, just on the lip line). Then I put the lip pencil on my lips. After that, I put the lipstick on my lips. A tiny bit of gloss (MAC) in the center is nice but never lasts.