Is it a bad idea?

Hey guys, if ive got a friend who knows im bi and doesnt care about that and is straight, would it be a good or bad idea to offer him a no strings blowjob just as friends? Not in a relationship kinda way but he likes getting his dick sucked and i love sucking dick so wed both benefit from it, or would the fact that im bi make him uncomfortable and he might think i want something more?