About the only way that it might work would be for you to tell him that it's your fantasy/desire to use this on him, as sort of a power exchange. Then follow through. Be gentle though, too much suction with one of those things can really hurt.

like ronlee said. You need to talk to him about it.

I don't know how I feel about those. I'd go with a Fleshlight, or something less expensive, a good masturbator with texture inside it.

Pumps are for people who have trouble gaining an erection or combined with a cock ring to get bigger and hold it. They aren't really for masturbation as using them for often and for long periods of time can have bad results.

Some people will love pumps others will feel weird about them. For me I'd feel a bit confused about that gift, there's a lot of other cool couples toys out there on EF.