The 30-year-old rapper and actor has been romancing the 'Transformers' star, 34, since May, and has now seemingly suggested he thinks their love will last forever, as he admitted there'll be ''no dates'' with other women in his future.
Kelly - whose real name is Colson Baker - appeared on an episode of 'Thirst Tweets' for BuzzFeed Celeb, and read one message in which a fan asked if they could take him out for dinner.
To which he responded: ''I'm locked in already right now. No dates for me. Probably ever.''
Kelly's declaration of lasting love comes after it was recently claimed the couple are ''very passionate'' about each other, after meeting on the set of 'Midnight in the Switchgrass'.
The movie's director, Randall Emmett, revealed the pair are ''very happy'' in their romance, which he described as ''sweet and beautiful'' to see.
He said: ''They're very passionate about one another and very happy, and I mean, it's really sweet to see that I had a little hand in that.
''The chemistry [on set] was second to none, but I just thought, I'm a great director! I didn't know there were these undertones and all that, and now, we spend a lot of time with them since they've been together and it's really sweet and beautiful, and I'm really happy for both of them.''
Randall and his fiancée Lala Kent have been on double dates with Megan and Kelly and the filmmaker joked the new couple are ''glued to each other''.
He added: ''Let me tell you the joke I make about our double dates, and they know I say this to their face: Going on a double date with Megan and Colson, it's like an individual date and a double date. The first half is very 'double date.' Everybody is conversing, we're having fun, we're laughing. The second half, they don't even know our name. They're just glued to each other!''
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