My step dad's way too touchy

I'm 16... and ever since I was like 13ish...my stepdad would come into my room and I'd wake up and he'd like just be standing there and then he'd leave...Just recently though ill wake up and he's kneeling next to the bed or he's rubbing on my butt, or under the covers messing around my panties..

He keeps touching on my butt, and grabbing me close to him... then he'll keep saying stuff when no one's around like..

"Your so beautiful"

"I can't help myself around you."

And he's always trying to give me massages and foot rubs... and once I let him rub my back because I was real sore...but he kept reaching out to my thighs and trying to reach my breast from under my shirt.

I don't know what to do...He's been married to my mom for 2yrs. and they have two kids..together.. I've tried to tell her about it like a year or two ago, but she wouldn't listen to me...she's really stressed out now and won't listen to any problems I have..

Am I looking too much into this?
My step dad's way too touchy
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