F4M - SPICY - Surprise Chastity Challenge: Friend Turns Keyholder! (Patreon)

You visit a friend who unexpectedly shows you a chastity device she had bought. She offers it to you, suggesting an exploratory twist to your friendship by keeping the keys herself. The situation escalates as she plans hygiene breaks, involving tying you down to prevent temptation. Throughout, she expresses a mix of excitement and nervousness about this new power dynamic, indicating a deeper layer to your friendship.