HUNTA-126 Miracle 3P! Our siblings suddenly got a stepsister who is a lesbian that creeps into beds at night! After our mother remarried, we siblings got an older stepsister! The new house is small, so the stepsister and we siblings sleep together in a cl

My mother remarried, and we gained an older sister who was a bit younger than us! I was happy to have a kind stepsister, but she turned out to be a lesbian who would sneak into my sister's room at night! Our new house is small, so the three of us slept together in a 'river character' formation. Then, from next to me, I heard lewd noises…I glanced over and saw my stepsister attacking my sister! I was shocked but got an erection and couldn't help but jerk off, only to be noticed by my stepsister…