Your 18-year-old sister calls you to come speak to her about something... sensitive. She knows you've been wearing her cute pink panties, but - to your surprise - she doesn't mind... Actually, she's really encouraging and wants to take you shopping and share clothes. She gets you to imagine just how she'll help you into them, and stand you in front of the mirror, whispering in your ear, straightening out your panties so they look just right. She seems to enjoy it so much that she starts touching herself as she tells you how she wants to touch you. Tags: sister, brother, roleplay, role play, crossdress encouragement, jerk off instructions, dirty talk, jerk off encouragement, British accent, cheerleader outfit, panty fetish, long socks, stockings, fantasy, story, JOI, JOE, sissy, sissification, caught, pigtails, dyed hair, cock tease, ruined orgasm, 18, teen, teenager, ageplay, body positivity, body positive, ASMR, stockings