My petite stepsister joins me to watch films and engage in anal intercourse, resulting in ejaculation inside her anus

I've got a bit of a taboo in my life. My stepsister, you see, is the kind of girl that's always up for some fun. She's got a body that's straight out of a magazine, with a big ass that's just begging to be spanked. She's got a pair of tits that are as big as they are beautiful, and she's not shy about showing them off. We're not blood-related, but that doesn't stop us from having a good time together. We love to watch movies together, especially ones with a bit of action. But things always take a naughty turn, and we can't resist the urge to engage in some anal play. It's a sight to behold when she squirts while I'm fucking her tight asshole. And the best part? I always make sure to fill her up with my cum.