I always change condoms if there's any third party contact, mouth, ass, pussy or sticky hands...
I won't want her sexual or non-sex infections passed on to me.
Always got a big bag of condoms and changing them.
Distract the guy, no fuss.
Had a threesome and the client fucked me.
The other girl was new and was just about to allow
him to stick his cock in and I had to stop them both
and change the condom. Really not sure what she
was thinking.
Also a threesome with a girl who thought it was acceptable to
work with genital warts and when I asked, she shrugged
and said couldn't be bothered to have them treated.
The guy didn't seem to notice.