He sounds great and I would respect his boundaries, but explore them. You could say that you would prefer to use your own fleshjack (I don’t think I would want to use one that’s used in a professional setting ), and bring your own plus an alternative or two. I just googled for you, and they have silicone sleeves (like the Tenga Egg), that are more “hands on.” Give him the choice and see if he pushes his own boundaries. I would say: “I wanted to bring it as it just sounds nicer to use my own and I can then wash it, if you don’t mind. And I brought some alternatives, which may be fun, but only if you’re comfortable to explore them together.” The last sentence lets him know you’re interested, lets him know you want him to be comfortable and lets him decide. Then tip accordingly.
(Does he wash the flashback after he uses it on you? That’s a saint of a man. If I was straight-ish, I would prefer to touch a bare penis than wash a fleshjack.)
HMLondon got a reaction from + 7829V in From Therapeutic to Fleshjack: Longtime Masseur Surprises Me