Redrum, dude that's the oldest trick in the book! JK
I remember back in my college days using that as a line. (yes I know ladies it's terrible but it's what college guys do.) I'd
very sincerely mention in casual conversation at the bar, party or wherever to my potential hookup for the evening that, "I've
never been able to cum from a blowjob."
It was absolutely funny at how often it worked. They took me as a "challenge" or "I'm gonna cure that" or "you've just never had it done right". Course, I guess it helped that back then I still had the athletic body of a 20-something.
I probably just violated some sort of Guy-Code by revealing this but looking back now, it was funny... and fun.