The opposite of casual sex.

"Save-the-Date" cards are sent, followed by printed invitations requiring an RSVP. There is an unspoken dress and undress code. Invitees are expected to be well-mannered, witty, and clean. Afterwards, a small note of appreciation is well received.
An evening of formal sex was always something to look forward to, a reason to go shopping in the preceding weeks, to attend to hair, nails, makeup. And in the following days, to lightly mention in passing, a source of envy amongst friends.
by Monkey's Dad January 10, 2022
Get the formal sex mug.
When you have sex while wearing formal clothing.
They went to a meeting together but ended up having formal sex.
by pari17 October 5, 2020
Get the Formal sex mug.