Rachel Riley was inundated with dirty messages after she told her 562,000 followers about her funny encounter with a unknown man.
The Countdown star had retweeted and commented on a post from a user who goes by the name @GawthorpeAndrew after a chance meeting.
Alongside a picture of the pair smiling, Rachel wrote: “Well if we keep bumping into each other at semis you must be good luck.
“I’ll look out for you at the final.”
The popular mathematician signed off the post with an emoji that stuck out its tongue.
Shortly after the 32-year-old television presenter was bombarded with bawdy messages following her ‘fifty’ innuendo.
One person wrote: “Rachel you give me semis… on the regular.”
Another added: “I’m not surprised he gets a semi every time he bumps into you!”
A third joked: “I’m sure most people that bump into you at least have a semi.”
While a fourth asked: “He only gets a semi when he bumps into you?”
It comes after Rachel was made to look unrecognisable following an extreme makeover for Channel 4’s Playing For Time.
The TV presenter and comedian Rob Beckett, 32, had two transformations. The first was to make the couple look like a band from the 90s and the other a goth duo.
For the gothic look, Rachel covered her long blonde tresses with a voluminous black wig and donned a layer of dark clothing.
She teamed her raven mane with an edgy lace top, a mini skirt, leather jacket, fishnet tights and daring high high boots.
Her make-up was worlds apart from her day-to-day girl next door look, as she wore thick eyeliner, charcoal coloured lipstick and lashings of mascara.
Rob mirrored Rachel’s appearance with a generous coating of mascara, a rustic black wig and several items of black clothing.
Speaking about the makeover, he said: “Rachel Riley and me dressed-up near each other, it is a show on its own without volume, seeing us as goths and 90s band members is enough to hold an interest.
“With this show, it’s for gamers and the general public.
“Anyone can watch it and by going through the decades, all different generations will get something from it.”