She was reportedly caught 'kissing' her married co-star Mikey North during a boozy night at the National Television Awards on Tuesday night.
And it's now been claimed that Alison King has 'no recollection' of the shock smooch and it 'utterly mortified by the events.
A source added to The Sun that the 46-year-old actress, who plays Carla Connor in the ITV, has 'apologised to everyone' who was there and pinned the blame on her being drunk.
Mistake: Coronation Street actress Alison King, 46, reportedly has 'no recollection' of kissing co-star Mikey North at the NTAs and is said to be 'utterly mortified' by what happened
The insider said: 'Ali has no recollection of kissing Mikey. She is utterly mortified and points to the fact she could barely walk as her only defence.
'She's apologised to everyone who was there and has blamed it on the booze. She literally couldn't stand up.
'There's nothing going on with them and no prior history.'
In a video obtained by The Sun, the soap star appears to share a smooch with the actor, 33, while seated next to each other in the audience at the star-studded ceremony.
MailOnline exclusively revealed that Alison had to be escorted out of the awards ceremony the same evening after an onlooker claimed she was 'drunk'.
An attendee at the awards ceremony told the publication: 'He has a family and she's engaged. It's the last thing you expect to see.
'I was in the audience and Alison caught my eye because she looked like she'd had a few too many. She was waving her arms and looking rowdy. Then I noticed she started touching Mikey's leg and before long they were holding hands.'
Despite being surrounded by their colleagues and thousands of fans, Alison and Mikey didn't hold back as they cosied up and appeared to share a kiss in the audience during the video.
Brazen: In a video obtained by The Sun , the soap star appears to share a smooch with the actor, 33, while seated next to each other in the audience at the star-studded ceremony
The insider reveals they were completely shocked by the brazen display and added: 'He has a family and she's engaged. It's the last thing you expect to see.'
They also mentioned that it wasn't long after their kiss that Alison was escorted out of the venue by her friend, who linked her arm and led her away.
MailOnline has contacted representatives for Alison and Mikey for comment.
According to an onlooker at the star-studded bash who caught the moment on video, Alison was 'drunk' as she left the awards.
Worse for wear? According to an onlooker at the star-studded bash who