But it seems just a few months into their romance, their sex life is in need of a bit of help.
Marnie has revealed she wants a sex toy for Christmas to inject some excitement into the bedroom.
In a video for MTV, the 24-year-old spoke with cousin Sophie Kasaei about what she wanted to find in her stocking on Christmas morning.
Marnie admitted: “I’ve wanted one for ages. A c**k ring. Not for me obviously, I don’t have a c**k. Preferably with about ten different settings.”
“Me and my boyfriend really need one at the minute”
Sophie asked what settings she would like, with the brunette replying: “The one that goes ‘buzz buzz buzz buzz’.”
She continued: “Me and my boyfriend really need one at the minute. I think it might spice it up.”
A worried looking Sophie responded: “Usually that happens after forty years.”
Marnie shut down her concerns and said: “No, it’s good for the boy though.”
Let’s hope Santa Claus stopped off at Ann Summers, then.
The Geordie Shore babe previously rated Lewis as a “10/10” in bed, and the couple have been sharing seriously raunchy pics – including a near-naked selfie from Marnie and Lewis’ bed.
And their relationship has just got even more serious, with the couple spending their first Christmas together in London.
Marnie wrote in Star magazine: “My parents are coming to London to spend Christmas Day with me and Lewis, then we’ll go to see his family.
“I’m really excited to be spending my first Christmas with Lewis, but I have no idea what to buy him. I haven’t asked him for anything – this time of year is about spending time together, not getting presents. I would be happy with anything.”
As long as it vibrates, apparently.