IF flavored condoms didn't protect from pregnancy or STDs, they'd also be completely ineffective for oral sex, since the lack of protection would have to mean they let fluids through. So that's a lie, but it's still a better bet to use a normal condom for intercourse, rather than messing with a flavored one.

As far as I know most water-based lubricants are not dangerous if ingested. I'm taking this information from an online drug store search I did that lists product warnings. If you want to know about any specific lubricant, however, any you can purchase SHOULD have a full ingredient and direction and warning lable; the warning lable will explain what to do if ingested, if there is harm at all.

((Posted at the same time! ))

As for edible lube, yes, edible lube exists. Flavored lubes are edible and condom-safe. Even non-flavored lubes tend to be safe for ingestion. Astroglide is non-toxic, which means you can ingest it without any problems, but I would not recommend deliberately eating the stuff for dinner.