Megan Thee Stallion's BF, Pardi, Takes Her for a Ride in the Club

Megan Thee Stallion looked more like Megan Thee Rag Doll in NYC this weekend -- and that's because her boyfriend was having his way with her in the club ... woof!

The femcee was hosting a party Saturday night in the Big Apple in honor of her new single, "Plan B," which she debuted at Coachella a few weeks ago. Seems like it was a rager, with MTS and her man, Pardison Fontaine, leading the charge in the hot and heavy department.

Check it out ... at one point, Pardi picked up Megan and started bouncing her up and down with hip thrusts, this as she had her arms wrapped around him. Yeah, it's pretty hot.

Even before this pony ride, it looks like Pardi had a firm grasp on her/the sitch at large -- literally carrying her upstairs like nothin'. It's wild ... Meg's not a small girl by any means -- she's reported as 5'10", so for him to be able to hoist her up like this is ... impressive.

Anyway, once they were in their own zone ... the dirty dancing continued, with Meg twerking and Pardi coming in for a taste. Looks like they're all about showing off PDA early and often -- which is great for everyone else taking in the show.