Actress Bella Thorne celebrates her 20th birthday by licking YouTube star's tongue!

Actress Bella Thorne, who is rumoured to be dating YouTube star Tana Mongeau, celebrated her 20th birthday in a unique style by making out with Mongeau. Mongeau shared a Boomerang video with Thorne on her Instagram from Thorne's birthday party on Sunday, reports aceshowbiz.com.

ur weird i'm weird i like u @bellathorne 👅

A post shared by tanamongeau (@tanamongeau) on Oct 7, 2017 at 1:41pm PDT

In the video, Thorne can be seen licking Mongeau's tongue while closing her eyes. This has further fuelled the dating rumours between the two as it came a few weeks after they were spotted sharing passionate kisses. PHOTOS: Actress-singer Bella Thorne strips completely NUDE for GQ Mexico; Reveals she asked for the pics not to be Photo shopped! Besides the video, Mongeau also shared a few photographs of her and Thorne.

what do u do after the longest birthday night ever? lay on the floor of the restaurant. happy birthday Annabella, I fucking adore you... see u in like an hour lmao❣️🤤 #nationalbellathornemonth #bellaween #octobella A post shared by tanamongeau (@tanamongeau) on Oct 8, 2017 at 5:00pm PDT

Thorne, meanwhile, took to Instagram and wrote: "Yes I changed my hair again and yes I'm fuxin 20. Let's go Libras met so many people last night that had the same birthday as me. It was awesome. Happy birthday guys!"

Yes I changed my hair again and yes I'm fuxin 20!!! Let's go libras met so many people last night that had the same bday as me ❤️ it was awesome. Happy bday guys!!!

A post shared by BELLA (@bellathorne) on Oct 8, 2017 at 1:35pm PDT

mineeee A post shared by tanamongeau (@tanamongeau) on Sep 24, 2017 at 12:03pm PDT