Kylie Jenner and PartyNextDoor
Kylie Jenner is reportedly "mad" for rumoured new beau PartyNextDoor Stephen Lovekin/Neilson Barnard/Getty Images

Kylie Jenner has reportedly moved on from her failed relationship with Tyga. Just weeks after she split from the Rack City hitmaker, the Keeping Up With The Kardashians star is said to be dating US rapper PartyNextDoor.

The new romance rumours were fuelled when PartyNextDoor, who is signed to Drake's OVO Sound label, shared a photo of himself on Instagram comparing jewellery with Jenner on 13 May. The caption read: "Diamond battles with@kyliejenner." The following day, Tyga, 26, may have mocked the rumoured couple as he boasted about his own jewellery collection on Instagram with a similar picture and the caption: "Diamond battles."

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An insider claims the romance between Jenner, 18, and PartyNextDoor, real name Jahron Brathwaite, is real and developed fairly quickly. The source reportedly told The Sun: "Their relationship started quite suddenly but it just feels right. They are mad for each other. She doesn't know why she wasted time with Tyga."

Jenner's romance with Tyga, 26, had been under intense scrutiny due to the age gap. They were rumoured to be romantically involved with each other when Jenner was 17 but they went public shortly after she turned 18 in August 2015. Addressing the age difference, the source adds: "Kylie's family found the eight-year age gap with Tyga a bit weird, especially as they got together before she turned 18 last year. PartyNextDoor is much better as he's only four years older than her."

Diamond battles with @kyliejenner 💎

A photo posted by PND (@partyomo) on

It appears Jenner has been friends with PartyNextDoor for some time as she and older sister Kendall Jenner starred in the music video for 2014 single Recognize, which features Drake.

PartyNextDoor, 22, was most recently linked to r'n'b singer Kehlani, however their union was shrouded in controversy. In February 2016, Kehlani was accused of cheating on her then-boyfriend Kyrie Irving but she denied these accusations. However, Kehlani received criticism over the cheating claims and attempted to commit suicide. The singer was initially linked to PartyNextDoor towards the end of 2015 and he dedicated a song to the musician titled Kehlani's Freestyle.

Watch PartyNextDoor's Recognize music video: