(This was originally filmed as a custom video) Your big sister has just bought her first home, and tomorrow the rest of your family is arriving to celebrate - but you're here a day early to hang out and catch up with your sister. As the two of you are getting ready for bed, you compliment your sister's nightie and she starts talking about the first one she ever owned, asking if you remember it? She says she was surprised that your mother even let her buy it, it was so sexy and inappropriate! She reminds you of how whenever your parents would go out for the evening, the two of you would hang out and watch a movie, or play monopoly... and your sister would always be wearing her silly, sexy little nightie! She asks if it was weird for you to see her in that, and when you shyly admit that it was a little confusing to see your sister in such a sexy, short dress with nothing underneath, she confesses that she was wearing it on purpose to fluster you! She asks you if you ever jacked off picturing her in it, and insists that she won't get mad if you say yes - so you nervously tell her you maybe did it a couple of times! Your sister giggles and says whenever you were watching a movie together, snuggled up on the couch, she would get so wet that she would have to immediately go upstairs and masturbate! She says how funny it is that you guys were both getting secretly turned on the whole time, and asks if it really was just a couple of times that you did it? You finally admit that you actually masturbated thinking about her in that nightie loads of times... And in fact, you still do it sometimes now, many years later! Your sister is thrilled, and shyly tells you that she's gotten wet talking and reminiscing about this... and she even asks if you would be willing to stroke it now in front of her...! You take out your cock and your sister is happy to see that it's rock hard already! The two of you start touching yourselves, giggling nervously and talking more about how you've been imagining this for so long... Your sister tells you she's desperate to see you cum, and you both touch yourselves faster and faster until you cum together explosively, before your sister asks if you'll stay a few days more with her, after the rest of the family have gone home tomorrow... Just so you guys can 'catch up' a bit more! ;) TAGS: british, english, redhead, ginger, tattoos, tattooed, solo female, roleplay, dirty talk, posh accent, pov, taboo, bro sis, brother sister, siblings, masturbation, mutual masturbation, joi, jerk off encouragement, lingerie, nightie, silk, silky, satin, nightdress