All logical: he takes off the brunette, she takes off his pants, and they are each engaged in their usual business. The girl, by the way, will go far in the modeling business, where the ability to completely swallow a big cock, while smiling at it, is highly valued. Give a deep blowjob with a friendly face, this is memorable and the next time you choose a model, she will automatically be at the top of the list!
I don't think it's bad enough to do self-satisfaction anymore. I'd be quite willing to fuck her in the cradle position - the ass still looks very attractive. And the sagging breasts, wrinkled neck and aged face wouldn't show.