Includes: Bisexual Dirty Talk, Cum Encouragement, JOI, Challenge, Masturbation Game, Dildo Blowjob Encouragement, Masturbation Encouragement, Masturbation, Dildo Fucking, CEI. StepSis finds out that stepbro is bi when she walks in on him giving a dildo blowjob to practice for real cock. StepSis thinks up a game to help him, like a good StepSis does. She will masturbate, and while she doorstep bro will give a dildo blowjob and watch. When she stops, step bro will masturbate and stepsis will watch. Ends with cum encouragement and CEI.