Stepsis Needs A Study Break

You are bored so you go and bother your stepsister Freya Von Doom who is studying, supposedly. Few spanks on her but and she is pissed at first but then she gets on the mood to have some fun with you as a study break. You are at aw of her tiny tits and bold shaven pussy. She even gives you a little bit of handjob and a blowjob. Since you were able to not cum yet, she decides its time for stepbrother to know what her wet tiny pussy feels like for your hard cock. Now the question is how long can you last?