In a sneak peek shown at the end of Monday's episode, Toff makes the revelation while dining out with Mark-Francis Vandelli and Jess Woodley.
Toff tells them: "So, I might have, um, hooked up with Richard!"
In another scene, Ollie Locke then questions his pal about the night in question, but Richard says: "I would never talk about that kind of thing, ever.'
This leaves Ollie to sum up: "Oh, you definitely did!"
If you cast your minds back to February, Toff and Richard were romantically linked after spending Valentine's Day together.
Toff had captioned the photo: "If at first you don't succeed....[smiley face emoji] @richarddinan. Happy Valentine's Day all [heart shape emoji and laughing face emoji]."
Their Valentine Day date came as a viewers watched Richard turn down Toff in the last series because he admitted he still had feelings for Stephanie Pratt, even though romance failed to blossom for the pair.
Made In Chelsea - Mondays at 9pm on E4
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