What's your favorite mannerism/habit of your partner during sex?

Mine is when my girlfriend is so expressive pag pinasok ko na tite ko. Walang makakatigil sa ungol niya, and parang di ko na siya makausap ng maayos.

Isa pa--bago ko ipasok, habang kinakapa pa niya yung tite ko sa entrance ng puke niya, she takes a few deep and quick breaths. Parang naghyhyperventilate. I asked her kung bakit niya ginagawa yun, sabi niya to mentally prepare raw for my huge cock. Hehe cute cute.

Kayo ba?