I have experimented a lot.
Here my experiences, tips and tricks:
Pre-cum:
Generally there when you are aroused, has no seminal fluid, is clear and tastes better than actual cum ... this will be no challenge
Cum:
the real thing and i tried the following:
1) Be forced by someone (open mouth gag and bound to the bed)
worked, but wasnt pleasurable since as you know all desire left the body with that cumshot
2) Freeze your load and use it later
works, not bad - cool is you can freeze several loads and almost bukakke yourself
some like to have cumsikles ... I prefer tawing it in a bath of warm water so it feels more real.
I advise against microwaving it
3) Prostate milking
I used a Njoy Toy (picture in the spoiler)
- Spoiler: show
You will leak loads of cum (real cum, not precum) without having an orgasm and therefore not loosing interest.
There are many prostate massage guides out there.
This is very cool in a tease and denial scenario, where you are only allowed to relieve yourself through this technique and
also works with a chastity cage on
4) use auto-hypno sessions (hypnotube.com is a good place to search for this kind of thing)
Works for some doesnt for others, but definetly worth a try
You will finf loads of other kinky stuff in there
5) Legs in the air
Cum right in your mouth with your legs in the air
not comfortable position and you will have a mouthful during your refractory period ... not fun but works...
So I like the prostate milking best, but this is a very individual thing.
Hope this helps some of you to remove this from their bucket list...
Looking forward to informations about other techinques I haven't tried
Cheers