It happen to me once halfway through a session. It was more like a ruined orgasm though. It was a good thing I was tied down or I might have tried to leave. At first I wasn’t sure how Mistress would take it when it happened. She was actually cool about and stayed in role play. She then snapped at me and said “did I say you could cum”? I was like err no. She was like “have you ever ate cum before”? I said no. She said “then this is a good time to eat it”. So Mistress then forced fed me whatever she could get. And just like that was my first time tasting my own cum. Mistress left me tied down for about 15 minutes to return to play. It helped Mistress was hot and never broke character about the whole thing.