His girlfriend wanted it! He has never squirted with her before

My girlfriend recently told me that her boyfriend has never come when she gives him a blowjob and she was very surprised when I told her that every man I’ve ever had has come when I’ve given him a blowjob. Then she came up with the crazy idea that I should just try it out on her boyfriend to see if I could give him a great orgasm. Her boyfriend agreed straight away because he was also curious to see if I could make him cum. And to keep it fair, he wanted to try it on me too, so we just tried the whole thing in 69. Do you think I could make you cum really hard while I suck your cock?