Jemma Lucy has accused Stephen Bear of cheating on her.

Stephen Bear

Stephen Bear

After 'Celebrity Big Brother' winner Stephen posted a raunchy Snapchat video of himself in bed with another woman, 'Ex on the Beach' star Jemma told her Twitter followers that she dumped him after he was unfaithful.

When one Twitter user wrote: "I swear @stephen_bear was just loved up with @jem_lucy like last week and now he's with another lass (sic), Jemma replied: "I f***ed him off he cheated (sic)."

She added: "He will cheat on her too babe like he did me! I'm lucky to be rid of him ages ago (sic)."

Just last month the couple appeared to be serious about each other as they got matching tattoos.

Stephen got an inking of Heath Ledger as The Joker, to match Jemma's tattoo and the pair also each had half a heart inked on their fingers, which aligned to make a full heart.

Jemma and Stephen appeared together on the All Stars series of MTV's 'Ex On The Beach' but only hooked up once Stephen left the 'Celebrity Big Brother' house.

Stephen previously cheated on former girlfriend Lillie Lexie Gregg and claimed he did so in order to save her from heartache.

The star dumped Lillie on national television after locking lips with fellow 'CBB' housemate Chloe Khan and bizarrely claimed he did it for her own good.

When host Emma Willis asked him why he couldn't wait until he left the house to break up with Lillie, Stephen claimed he was trying to prevent her from getting hurt like his last girlfriend.

Emma continued to grill Bear, saying: "Couldn't you have waited after the show to break up with Lillie?" but he refused to take it the question seriously and only replied with, "Couldn't you have worn a red dress?"

During his exit interview, former 'EastEnders' actor Ricky Norwood - who placed second - admitted he had changed his opinion on Bear after Lillie came into the house to confront him.

He explained: "The biggest thing was when his ex Lillie came in. As soon as she came in, all his defences broke. I saw a man in pain and in anguish and I felt like I had seen the real Bear for the first time.

"He's the most unpredictable guy I've ever met in my life."