My first roleplay at 17

I can hear my brother in the shower. I’m in my room alone and I feel really horny I slowly take my panties down and start rubbing my thighs which lead me to feeling my wet pussy. I’ve only lost my virginity 6 months prior and I’m fairly new at masturbating with my fingers inside myself. I start rubbing my clit really hard and fast and then stick my fingers inside that little hole that’s only recently been opened. I get up and get my little purple vibrator and start it out on the slow speed then realize I need more. I put it on the highest speed and feel my clit getting excited, I can feel my pussy start to drip. I then decide to just put my fingers inside to feel how wet I made myself. i was soaking wet. I put my fingers to my mouth to taste my delicious flavor and I realize someone is looking at me. My brother walks in and asks me what I’m doing .With lust in his eyes and a big bulge in his pants he crawls to me on the bed. I was embarrassed, I grab the sheets to cover up. I tell him to get out. But as soon as I say it he’s on top of me and I tell him to get out again. I feel shocked my brother has never shown any sexual interest in me nor me to him… But he is a good looking guy and he does Have a big cock, I know from accidentally seeing it once.. He’s looking at me like he wants to fuck hard, he bites his lip.