You have to have respect for yourself. I can not validate you by letting you 'give me' a blow job. You will not be healthy and whole after the act simply because of it. I am sure it hasn't worked for you in the xx years since you started down this road. You will not win me into your home and hearth if that is the first intimate act you offer.
But if all you want do is jump my bones that is okay too. Just respect yourself first. Please.
These words feel harsh as I write them but they are true, at least with this male tailless monkey.
[Update] Just to be clear you don't need to be perfect, even in your self-respect. You can have moments of weakness as we all do.