I've had punts where I've been aware of others in the house and tried not to let it bother me - the girls need some kind of security after all, and as it was never going to be me who kicked off, I was confident all would be well.
On a similar note, I met with a regular lady in Slough at her own place. Just as I'd stripped off, she came into the room and said "You haven't met my sister, have you?" In walked the sister, naked as the day she was born and hot as fuck. I smiled, said "hello, nice to meet you" slightly self concsious of my developing semi. It turns out that they alternated client bookings so one of them was always free to answer the phone. Sis's last client had just left and she hadn't dressed yet, so without any inhibitions, she popped in to say hi. I like to think it was because the girl I was visiting had said to sis "come and meet Stevie, he's an awesome, all-round amazing man". Probably just touting for future business, but hey, I can dream, can't I?
By the way, this is a bit off topic, but I just wanted to brag!
In case you're wondering, both girls now work for the same establishment in Surrey, I believe.