Hi Edyrn, the return of Lara's Title is all part of Sarah normalising Lara's behaviour and making the changes permanent. In the next chapter (not really a spoiler, because it's not a major plot point), we see Lara a few weeks later attending regular Charity dinners once a week. These are smaller (not as much turnout since they're not sexual), with the guests being everyone who's used her in the playroom that week. So she is literally fucking some of these people a couple of hours earlier and then socialising with them as if nothing happened. All done to feed Lara's sexual addiction and gaslight her into believing everything is normal. When it's all over, Lara will be presented with a fait accompli - she'll never be able to return to a regular sex life or vanilla relationships, and her reputation will be so ruined that she couldn't do so, even if she tried.
I'm not a foot person either, but I'm happy to try writing something different and see how it turns out.