Caught by step-son - Taboo Handjobs

My step-mom is a little hottie. She has gorgeous long dark hair and near perfect breasts which she proudly puts on display in her dresses. She is my step dads arm candy and my fantasy. Imagine my surprise and delight when I came home from work early one day to find my step-mom's hand wrapped around my step-sister's boyfriends cock! I didn't know my step-mom had a thing for young guys. She is married to my step-dad who is getting up there in years. I took this awkward moment to seize the opportunity for some hand action on my junk. The poor fool boyfriend already managed to get his rock hard dick back in his pants for a hasty exit as I presented an offer to my step-mom. She knew she was caught in quite a predicament, one that my step-dad would most certainly dis-approve. I told her she could finish what she was doing with my step-sister's boyfriend on me and I would keep my mouth shut about the whole situation. At first she relented and claimed how gross of a thought that is but quickly