The Love Drug part 6
Then you felt Penny's fingernail graze the bottom of your foot, making your whole body jump! Your feet were so ticklish! Penny laughed at your reaction, and tried it again, getting the same result. She was obviously enjoying this!
"How about if I relax for a little while and let you fuck yourself, slave?" She stopped thrusting into you, and left the strapon sitting still, although still inside your ass. Then with every fingernail on each hand, she traced the base of your feet. You couldn't control your reaction! Every muscle twitched, making your body slide up and down on her cock! She smiled a very evil smile, and kept going. This was maddening! You desperately needed to get away from the tickling, but every time you moved you just fucked yourself up the ass with her cock!