(Noun) an older woman who seeks out young male lovers Usage: Jen's leery about their nine-year age difference, and friends have been teasing her about it, calling her a cougar. http://www.definition-of.com/cougar Older single women who seek younger men. Old Woen who act like they're in their teens still. An attractive middle aged woman.
Lip twitching: It can be due to injury, irritation, stress and intake of caffeine & alcohol. In my experience most cases are due to hyperventilation 2/2 stress which could cause transient drop in blood calcium, My suggestion would be to decrease Caffeine and alcohol intake, try meditation and relaxation.
Asymmetrical Smile Correction. From your photo it looks as though the cause of your asymmetry is due to more pull on the lip from a muscle in the left upper lip area; however, as others have mentioned, this would need to be confirmed by seeing how your lips look at rest (no expression).