She needed help with her investigates and I needed to have my dick fellated on a regular basis and fuck at home sans having to chase girls around. My 18 y.o. stepsister and I were meant to be lovers and boy did she enjoy jumping on my big cock and taking it sack of babymakers deep both in her mouth and pussy! It took me some long negotiating to persuade her to try it, but now she begs me to fuck her every day and even lets me spunk inside. Kinky family as it is!