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13th Oyster

A humorous sexual euphemism referring to cunnilingus performed after a successful oyster date. Inspired by the long-standing reputation of oysters as an aphrodisiac and the tradition of serving them by the dozen, the “13th oyster” metaphorically refers to the intimate reward hoped for after dinner — specifically oral sex involving a woman’s genitalia.
Typically used jokingly to describe the progression from flirtatious dinner chemistry into sexual intimacy later in the evening.
“She uncrossed her legs, smiled at him over the empty oyster tray and said, ‘Maybe you’ve earned the 13th.’”

“The first dozen oysters were inhaled before the second cocktail arrived. The 13th oyster was the one he intended to enjoy all night.”

“The first twelve oysters came chilled with lemon and champagne. The 13th was served hot, soaking wet, and eaten like he’d been starving all night.”
13th Oyster by matewithher May 10, 2026
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The 13th Oyster

A slang term for cunnilingus after a successful oyster date. Inspired by oysters’ reputation as an aphrodisiac, their visual resemblance to female genitalia, and the tradition of oysters being served by the dozen.
The first twelve oysters were served on ice. The 13th was warm, wet, and waiting afterward.

She uncrossed her legs, looked him dead in the eyes, and suddenly the 13th oyster was back on the menu.

He swallowed the first twelve oysters whole. The 13th was the one he planned to take his time with.