I imagine you typing this late at night. As you sit at home alone thinking ways to sabotaje him, he's getting back from the club after getting her tipsy and now she's ready for a "wild" night
With consideration for your feelings after fucking her for like 2 hours till she's dry, he pulls his dick out and slaps her face with it a few times while holding her by the hair. He rubs it off while she licks his nuts ocassionally slurping his ball sack in her mouth in it's entirety. Then he proceeds to squirt hot sperm on her face and in her mouth then sticks his dick back in her mouth making her suck it clean. After another beer and this clear example of him showingt his alpha side and her finding the joy of being submissive and pleasurably forced into things she'd never do with you, he convinces her to try some anal. So he proceeds to penetrate her ass and she finds it delightful as he chokes her while anally ramming her. She is moaning with pleasure and he squirts inside her shit shute just as you press "Post" on your elaborate cry for help.
PS: he makes her blow him first thing in th morning and cums in her mouth without returning the favor of course. Happy to experience what cohabitating with an alpha male feels like she makes him a fresh cup of cofee and serves him in bed ocasionally making jokes about how she liked being posessed last night while constantly complimenting him on being "too big" .