My go to memory to masturbate to is when I was in my early 20s and got dominated by a guy. It was the roughest sex I've ever had and most disrespectful a guy has been to me in bed. I might write out the whole story in the future, but here are the highlights.

Me - 5'2", a little thick back then (thicker now)

Him - 6'2-3", white guy, country/farmer boy body that was big and strong but not fat, thick 8" dick

First sign it would get rough: As we were making out and undressing, he noticed I wasn't wearing panties and said "you're a little slut, aren't you?" Which I replied "of course".

Blowjob: commanded me on my knees, call me names like "little dick sucker" and said "you were made to suck my dick." Grabbed the back of my head and came inside my mouth without warning while grunting out "swallow it"

Sex: Threw me on the bed, held my arms down while I was on my back at the end of the bed and fucked me good. Next told me to put my ass in the air and fucked me doggystyle while slapping my ass, pulling my hair, gripping me tightly on the hips. He dirty talked a lot, called me slut at least a few times including asking "are you my slut?" which I replied yes. He came while holding my shoulders and pounding me deep. Yelled out "take it bitch" multiple times right before he came, then grunted out "bitch" when cumming.

Aftermath: I orgasmed multiple times, pussy was sore for a couple days, ass hurt for a day from the slaps. I didn't hook up with him again because I was a little scared he might get even more rough, but wish that I had.