Diddy 's twin daughters are ecstatic for their first NYFW as full-blown adults ... judging from their progress, dad would be proud!!!

Jessie and D’Lila linked up with TMZ in NYC on Monday and surprisingly, they were completely at ease -- the fashion world is their element!!! Play video content

They tell us they plan on closing out New York Fashion Week in style with their first runway walk ... and the strut is in their DNA, as they didn't even hire any modeling coaches whatsoever.

The Combs Twins launched 12TWINTY1 earlier this year and are soaking up the experience -- and the pointers their close family friend Kimora Simmons has given them. Getty

Kimora, being the accomplished model herself, has walked for some of the big luxury brands and definitely knows the road they

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