HUNTB-528 I'm a convenient rental little brother! My sister rents me out to her girlfriend. We take baths together, sleep in the same futon... Sister's friend enjoys the pseudo-little-brother experience. But we're both adults.

My sister rents me out as a pseudo-brother to her friend who doesn't have one! We take baths together, sleep in the same futon... basically, my job is to fulfill everything her sister-friend would want to do with a brother. But since we're both adults... naturally, things react during baths and sleeping together—super hard-on! But her sister-friend seems to find even that endearing, so what was supposed to be an overnight stay might end up getting extended!! Honestly, she's 100 times better than my real sister! She's kind, sexy...