Spying on Step Sis's Sexy Slumber Party with BFF, Scene #01

Something in me told me to stay and watch my step-sister Evelin Stone and her hot, small, blonde friend Anastasia Knight sit on the couch. They kiss all over as they gradually undress each other. Evelin takes off her underwear and plays with her friend's pink nipples. She spreads her lips and begs to feel her moist tongue run over her clit as she widens her legs for my step-sister to lick. Her pal experiences full body spasms due to step-sis! It's Evelin's turn now! My step-sister's ass was arched, high in the air, grinding her cheeks on her friend's tongue until she cums! I couldn't believe what I was watching! They glance around, but they don't notice me watching their little lesbian adventure...