my bi woman friend, has a willing sub fem, till she made her share with me

I am 38, decent shape, decent cock, pretty thick though. Mags is very domme with women, 49, tall, very hot body, pretty, with great legs, DD tits, and nice black haired bush between her legs. She is very bi, mostly has sex with women but she and I have been together through thick and thin for years now. She has shared her sub lesbians with me over the years. She especially loves making a younger woman who has never had sex, nor wants to have sex with a guy, take my cock. Mags and Donna have been fucking for about 4 weeks. Donna being very very submissive, letting Mags do all sorts of things to her, publicly, and privately. For a week she even made Donna fuck her with me there to watch and jack off. A couple days ago, as I'm jacking and I'm ready she grabbed Donna and yanked her fat body over to me. Got her on her knees in front of me. She told me "Go ahead, stick your cock in this bitches mouth, cum in her mouth" Donnas we yelling no, and not to do it, she doesn't want to. Donna is a fattie, not super, floppy fat but fat. That earned her a smack on her fat face and Mags hands on her head forcing her. "Go ahead do it, the slut never taken a cock from anyone she needs to know how good your cum tastes". Soon Donna was crying as I was erupting in her mouth with about 4 inches of my cock in' her mouth. A little dribbled out and Mags once again slapped her, and told her to swallow it all. Donna did, as Mags was hitting her tits (which are pretty fucking massive) as hard as she could. Left, right, over and over again, as the crying Donna cried even harder and louder begging her to stop. She stopped then told her "get your naked ass over there and lay down on the fucking bed slut". Donna went over and laid down. "Roll the fuck over, I don't need to see your crying fucking face bitch, ROLL OVER NOW". Donna rolled over burying her face inbetween the pillows her plump, wide ass and big thigs showing.

Mags and I laid next to her, and I fucked Mags. "Don't cum in me, baby I have a treat for you" she told me. She got me off and told me to fuck Donna in her fat ass. I got on top of her, Mags made her reach behind and spread open her wide ass cheeks. She started crying again. She was begging saying she'd never had a guy before, and never did it "back there" with anyone. "Please don't make me take a cock, I don't want to be with a guy" she begged. That earned her a punch, to her side, then to her head. Crying, her face in the mattress she was just saying over and over "I don't want a man to do anything to me, I don't like men, I like women, please don't make me". That was interrupted by her agonizing scream as i plunged my thick cock up her tiny little asshole. Even in all the screaming Mags says "Fuck the bitch, fuck her, make her a buttfucked slut". She moves up and puts her pussy under Donnas head and Donna starts eating while crying. Mags cums, I cum, and Donna is still crying. I pull out. Mags gets up, Donna starts to get up "Did I tell you to move shithead?" comes from Mags mouth. "No maam" is a muffled reply. "I just hurt back there and I need to wipe and go to the toilet, please let me." she asks and Mags tells her not till it's truly done. With that she moves over with a black sharpie marker and writes "Buttfucked by a thick cock" then my name and the date.

I found out she did that writing over the same spot for over a week. It would last a long time now. I eventually, to her crying, fucked Donna for her first time taking a cock in her pussy. Her hymen was gone from a girl in high school when she was 15. But I was her first cock. Now Donna regularly has to let me fuck her mouth, her pussy or her ass. Anything I or Mags chooses. When mags and she have sex, Mags usually makes Donna stay in bed while Mags and I fuck.