Chances are that your mother already knows whats being going on.all this .A smart woman can tell by their man and you the daughter.......good luck
The last part of my comment was left off, so I'm including it here:
There's a reason why you chose to have sex with your mother's boyfriend. It could be that you feel lonely or unimportant--or it could be any number of things. The important thing is that you need to figure out why you did this; because otherwise, this pattern will continue throughout your life--and it can be very destructive. Please find a counselor with whom you can talk, so you can decide on the best course of action for you. Best of luck to you.
OK. Fine. I won’t tell you anything. So what are you asking? You’ve already made your decision. Now live with it. You say you’re very experienced, but it doesn’t seem you’ve learned anything from your experience.
I won’t tell you that you’re a “stupid teen.” You’ve created this situation, and it’s your responsibility. So if you feel you’re a responsible adult, you need to start acting like one. With sex, comes responsibility, and that means being honest with your mother, regardless of the consequences. Are you prepared to do that? It could mean the end of your relationship with her, and it could also mean the end of your relationship with her boyfriend.
Or you can continue to act like a child and sneak around. Your choice. Dr. J