The gym instructor can't contain herself when she notices my erection inside my pants and she wants to ride my huge cock

I take some personalized classes at the new gym in the neighborhood... The instructor is a pretty young girl and a bit intimidating... While I was doing some exercises I feel a discomfort in my leg and she decides to help me, but she quickly notices the erection I have and instead of getting annoyed, he starts making pretty flirtatious comments... I take the opportunity to take out my cock and let him give me a good blowjob, but it doesn't end because my instructor's slut wants to feel my huge cock in her tight pussy until I cum on her beautiful face!!