Your stepsister was being so kind by offering to give you a handjob... she knew you weren't very experienced, and wanted to help you get more comfortable around women. But that was before she undid your pants, and discovered just how tiny your dick is! Rather than stroke your cock, she started to laugh and insult you. How could she help herself, it's an embarrassment! Then she noticed all the insults and laughter were turning you on even more, so she leaned right into it. She keeps laughing and you and telling you about all the ways you'll never measure up, and starts instructing you on exactly how you should stroke your minuscule cock for her. She shows off her sexy curves that you'll never get to touch. Finally, she gives you a cum countdown when she can tell that you can't hold off too much longer! Your stepsister just loves making fun of you and controlling your little tictac. Keywords: SPH, small penis humiliation, JOI, jerk off instructions, laughter, verbal humiliation, femdom, teasing, cruel, mean, curvy, redhead, brunette, long hair, role play, taboo, stepsister