This is funny, seeing as though my boyfriend and I were just discussing this a few days ago.
I scrunch up my eyebrows... like a frustrated 'fuck me' look, and I always seem to bite my bottom lip, or just lick them... There are times when I make the '0' shape as well... thats only when I am completely speechless though, and I am about to cum.

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---Masochistic Angel---

Pain and Pleasure are all the same...