Favorite Masturbation Fantasy

Currently, my favorite fantasies are of dear friends I've known; what if they were also Bisexual, and we had explored and deepened our relationship sexually?

 

Wanking in front of my gfs mum, her on her knees in front of me, wearing a pushup bra giving me gentle verbal encouragement. I cum all over her tits, wipe my wet dick in her cleavage, then I lick up and eat my mess off her soft tits

 

My go to fantasy. Some background first. My mom is 29 for the thirteenth time and very fit. She goes to Yoga and cross fit. I recently met her yoga partner. Beautiful 28 year old, black long hair in a ponytail, about 5'4", also very fit. A few months ago, I’m pretty sure my mom saw me masturbating. I thought I was alone in the house. Much to my surprise, she was still home waiting for her Yoga partner. Fast forward about a month. I’m back home for the weekend getting into the shower while mom is getting ready for her yoga class. Assuming they had left when I got out of the shower I put on just my sweatpants, I was still a little wet and the sweets stuck to me a little. I walked in the kitchen where mom and her friend were standing, about to leave the house. Her friend turned and formally introduced herself to me while giving me a lingering once over with a smile. As she turned to leave, she looked over her shoulder and said “I’ll see you around sometime…soon”. What I didn’t know was I had a very visible semi erection. I am wondering if mom told her about seeing me masturbating. Now, I fantasize her seeing me masturbating and joining in. Which I did right after they left the driveway.