Not sure if you write this kind but could you try a dom y/n with a sub mark. Maybe along the lines of begging. Riding them and they want more. A consensual slap or two. Soft degrading if you want to
i think i suck at doing femdom but i've never written it actually. i'll try.
"does it feel good?" mark asked you with his round eyes looking at you. a smile curved on your lips as you threw back your head, continuing to bounce yourself on your boyfriend's cock. "so good, baby. you make me feel so good." at that point, your eyes were rolling with pleasure. mark had such a big cock and you were lucky that he didn't really know how to use it. so you get to do whatever you want with it.
"is my baby gonna cum?" mark's loud and continous moans lead you to asking that question. he looked so cute all helpless. his hands reached to your hips but you slapped them away. "i asked you a question, didn't i?"
"yes.. yes! gonna cum. wanna cum. please let me cum." you chuckled when he started begging. and when you nod your head, mark went crazy with his orgasm. it was so much, it was already leaking out of you. you stopped moving for a second.
"more.. more, please. need to cum again." he cried but instead of moving, you gave him a slap. "didn't even make me cum and you want more? how are you such a shameless slut?"