Ah, it feels so good that I can't act... My heart and mind are trying to put up with it, but my body reflexively becomes more sensitive than usual because I'm bound by the restrictions of "pretending to be asleep". Goosebumps that tremble with pleasure, nipples that harden with anticipation and excitement, clitoris that erects shiny with body fluids overflowing... Her tightly clenched lips eventually loosened and became half-open.