Lisa turned on the vibrator at the bottom and laid back on the bed.  She pushed her panties to the side.  She started to rub the vibrator against her clit which was already swollen from the fucking she had received.  She did her best not to let Jack see this until she had rubbed it for a few seconds.  Over the next minute or so she slowly let her legs fall open so Jack could see what she was doing.  She knew he would either order her to do this on her own or would do it himself if she didn't do it voluntarily so she did it as her own pace.  At least this gave her some element of control.<br/><br/>She knew that her clit was the easiest way for her to get herself to orgasm.  She started working on it and within 4 or 5 minutes she could feel the tension starting to build.  She knew that the fact she had been fucked hard was part of the reason she was ready to go within just a few minutes.