Blowfish

The act of blowfishing is when a couple invites another man into the bedroom for a threesome. The husband then ejaculates into the other man's ass and then proceeds to suck his own semen out and blow it into his wife's vagina in hopes to produce a child. If and only does the wife get pregnant can it be considered a blowfish.

Hey man, want to come over this weekend and blowfish my wife?

Son, you were conceived as a product of the good old blowfish.