Take up her offer

Why not head to the university, they usually look nice for the money they get. Furthermore your sister is your sister, it would be nice to learn more about her and bond so you accept her offer. "Yeah! Sure thatll be cool, let me finish this game and we can do that..." as you quickly try to put on some clothes and clean up.

Your horny mind unable to resist the idea of wearing a large Gemmed buttplug with pink striped panties underneath your boyish clothes. Trying to clean the cum still staining your face and you think you spot a white form in your hair for a millisecond but before you could make sure, you hear Jenny asking for you to hurry up so decide to leave and head out quickly.