I was caught by one of my room-mates' friends at college - he'd returned to the room unexpectedly, to get something. He didn't seem to be very shocked to see me with my pants down and cock out, and actually said "don't stop", but I was too embarrassed.
"No", he said, " I can help you with that........." - then I was even more embarrassed!.
"OK", he said, "if you don't let me help you, I'm gonna tell everyone", which kinda left me no choice. He started with his hands, and it felt strange, but nice. Soon carried on with his mouth, which was a surprise - but one of the best blowjobs I've ever had.
We've kept our bi-action quiet, and stiil contrive to see each other occasionally for some refreshers........