This thread is your bible, pretty much says it all-
https://saafe.info/main/questions-and-answers/dropping-half-hours-at-home-location/
I do massage and escort and have the same timings. Most clients won't need prompting.
You can pretty much guage if a client is a delayer once you lay hands on the first minute.
I warn them in a jokely, wink-wink, way it's 10, 5, 2, 1 minute till the end of the session and they usually cum.
I leave 7 minutes for them to get dressed so I factor that into the cock time.
If they're older eg over 40 they may have specific medical or psycological ejaculation or erection issues they
will never fix so I'm prepared for them to be angry, moody and blaming.
My ears grow very, very small and I can't hear anything they're saying.
They may protests about their cock history or your ability.
Don't get drawn in, that's a disaster, it will escalate into a blaming competition.
If no cum despite my several jokey warnings, I announce the session is finished, I wash my hands, get dressed and start cleaning the room and go bathroom. I tell them to come out when they're dressed. It's not an ask.
Sometimes you may need to say you have a client standing outside for his booking, that usually works fine.
Some men will never cum at all due to psych, health, surgery or cancer reasons.
Some will warn you others won't. Cumming is their responsibility we enable it but can't force it.
You will find every kind of pleading, blaming and bizarre illogical comments it's all poop eg
You shouldn't have told me the time/ You should have told me the time
You're holding too tight / You're holding too loose
What do you want me to do? Oh I didn't know you want me to cum!
Oh I never cum...I didn't know I had to tell you that!
Oh I only cum if I get rimmed, sucked, prostate...didn't you know that?
I thought you carried on till I cum!
Oh I haven't cum since 1999 my dear