Beauty ques. easy 10 pts!!!?

my lips are kinda big, bt not really, anyway, sum days they look real small than what they posed 2 be, its like my lips shrink, wat i wanna know is wat homemade or store bought things that will plump them up a lil?? bt i prefer homemade bt its wateva. thnks. oh yea and dont tell me i dont know how 2 write, cuz i do i jus dont feel like it:)