When Sue finished, Sandy strained at her ropes but it was no use.  They were strong and tight, she was stuck flat on her back with her head leaning over the edge of the bed upside-down.  Sue planted her dick head in Sandy's mouth, just resting it there as it grew to full size.  Sandy squealed, trying to beg for mercy, but no intelligible words came out.  Pre-cum started to drool out of Sue's cock, until Sandy had to swallow it to keep from choking.  Gulp.  As Sandy gulped pre-cum, Sue forced her cock deeper into Sandy's throat.<br/>"G'k, GAK", Sandy choked out.<br/>Sue paused, then forced her cock further down Sandy's throat, and paused.  "Gotta wait for your throat to stretch, sug.