The former Hollyoaks actress - who recently had lip injections - was pictured smooching her model beau in a photo posted to Jeremy's Instagram page on Sunday evening (3 April), while they attended friend David Gest's birthday.
Another picture showed Jez and Stephanie with birthday boy David, although Jez added the cheeky caption: "Bringing grandad out for a walk."
They met David on the last series of CBB, the same show in which they fell in love.
Both Stephanie and Jeremy looked blissfully happy in the snaps: a far cry from the drama of recent weeks that has encircled their relationship.
It was only a week ago they had parted ways amid fresh allegations that Jeremy had cheated on Stephanie. He vehemently denied the claims and the pair patched up their differences.
Steph said at the time: "I can confirm the messages supposedly sent from Jeremy aren't true. Everyone can hate and say what they like, but at the end of the day I met a boy who I fell in love with. It's been hard with all the press and tweets, have all you not experienced heart ache. It's been so hard for us. And if you could all see the pain I've been in and him you would understand.
"Yes your right and I won't be posting my life on social media," she continued. "But when you meet someone you love and can't live without you know its real. This week has been the worst week of my life & I just want to be happy. Against me or not I'll do what I have to do and follow my heart. Where sets what will be will be."
Steph, who went on a blind date last week after splitting from Jeremy, added: "There's a lot u don't know only by what papers say. It's my life and my choice, I might be wrong I might be right... I can only follow my heart & I hope."
Since finding love on CBB, their romance has rarely been out of the headlines and there have been several splits and reunions.
Jeremy admitted on TV that he had slept with a club dancer following his eviction from CBB and while Steph was still inside, but denied it was cheating as he hadn't been in a relationship with Steph at the time.
Things appeared to be back on track last week when Stephanie played an April Fools' Day prank, announcing her engagement to Jeremy.
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