Jack off session (9-2-15)

i was in a hotel all day with my parents and sister..made it hard to get done what was needed. I went into the bathroom around 11pm and pulled by wanger out and jacked it, but forgot to lock the door and my sister walked in on me, slipped on the wet floor and her mouth fell straight onto my dick. I will admit those few seconds felt awesome. i finally got laid...but she got up, and started smacking me and threw me in the bathtub. sucked..