He can't keep his hands to himself! Kylie Jenner shares racy Instagram snap where Tyga suggestively touches the teen on her bikini line

Kylie Jenner has made a habit of flaunting her curves on Instagram.

And now the 19-year-old Keeping Up With The Kardashians star seems to have gone a step further by pulling her beau Tyga into the scene.

The TV sensation posted a very risque selfie on Sunday where she was wearing nothing but a very tight white leotard as the rapper placed his hand provocatively on her bikini line.

Gone too far? Kylie Jenner shared this Instagram snap on Sunday where Tyga rested his hand on her bikini line

Gone too far? Kylie Jenner shared this Instagram snap on Sunday where Tyga rested his hand on her bikini line

Yes, she wore that outside: Jenner had on the leotard as she helped Tyga throw his son Cairo his second Ferrari themed birthday bash on Sunday

Yes, she wore that outside: Jenner had on the leotard as she helped Tyga throw his son Cairo his second Ferrari themed birthday bash on Sunday

Too much? The rapper had a Ferris wheel, DJ, giant inflatables and a photo booth

Too much? The rapper had a Ferris wheel, DJ, giant inflatables and a photo booth

She covered up here: Kylie pulled on a jacket when his family came in for a photo

She covered up here: Kylie pulled on a jacket when his family came in for a photo

His other hand met hers. She held onto a phone that had Lip Kit emojis on them. The only caption the Lip Kit queen was of a roaring cat.

The two were standing in her living room of one of her Hidden Hills mansions.

In the background his Ferrari gear from son King Cairo's birthday party.

The two threw a major bash for the boy on Sunday. The rapper had a Ferris wheel, DJ, giant inflatables and a photo booth. Guests included Kris Jenner, Caitlyn Jenner, Kourtney Kardashian and Kendall Jenner.

Kiss kiss: Here the youngest Keeping Up With The Kardashians star is seen smooching her older boyfriend of one year in photo booth pictures

Kiss kiss: Here the youngest Keeping Up With The Kardashians star is seen smooching her older boyfriend of one year in photo booth pictures

He's money: Guests included Kris Jenner, Caitlyn Jenner, Kourtney Kardashian and Kendall Jenner

He's money: Guests included Kris Jenner, Caitlyn Jenner, Kourtney Kardashian and Kendall Jenner

His boy: This comes one day after his ex Blac Chyna threw King Cairo a Ferrari themed party at her home. King's mother is Blac Chyna, who is having a baby with Kylie's brother Rob Kardashian

His boy: This comes one day after his ex Blac Chyna threw King Cairo a Ferrari themed party at her home. King's mother is Blac Chyna, who is having a baby with Kylie's brother Rob Kardashian

The day before King's mother is Blac Chyna, who is having a baby with Kylie's brother Rob Kardashian, threw her own Ferrari-themed birthday party for Cairo. 

It is not known if Kylie and Tyga made that one, but Kris was there. And it is also not known if Rob made the fete either.

This comes after Kylie told her followers she liked looking heavier.

'I like the chunkiness!' Kylie  denied getting 'a** and boob implants' and credited her new curves to 16lb weight gain; she is seen here in an Instagram she posted earlier this month

'I like the chunkiness!' Kylie denied getting 'a** and boob implants' and credited her new curves to 16lb weight gain; she is seen here in an Instagram she posted earlier this month

Speaking out: Fans have debated whether despite her tender age the teen has gone under the surgeon's knife - a rumour that has long dogged her big sister Kim

Speaking out: Fans have debated whether despite her tender age the teen has gone under the surgeon's knife - a rumour that has long dogged her big sister Kim

Speaking about her enviable shape in a Q&A on her paid for blog, she said:  '[I haven’t had] a** implants.'

She also denied having surgery on other parts of her body, including her breasts, nose and jaw. 

Kylie agreed she looked curvier - but blamed a 16lb weight gain for the change.

'You know, I used to be 120 [lbs.],' she explained. 'I was really skinny. Now I’m pushing like 136. But it’s alright, I like the chunkiness.' 

Thanks to the sultry pictures with which she entertains her social media followers, Kylie's changing figure hasn't gone unnoticed.

As she was: The teen is pictured back in 2014, showcasing a seemingly less hourglass shaped figure 

As she was: The teen is pictured back in 2014, showcasing a seemingly less hourglass shaped figure 

Fans have debated whether the teen has gone under the surgeon's knife - a rumour that has long dogged her big sister Kim.

Kylie dismissed such talk, explaining: 'I don’t really think I have the fattest ass, but I know my angles.'

But although she denied having had surgery, Kylie did not rule it out in the future, saying her breasts were 'not big'.

'I’ve thought about [getting breast implants], but I’m like, why ruin it?' she mused.

'I have really good boobs naturally and they’re a cute little size. I’m not against it, but right now, it’s a no from me.'

Along with her curvy rear and breasts, Kylie also discussed other parts of her body - and the speculation about them.

'People starting saying that [when] I was like 16,' she laughed. 'You think Kris Jenner, at 16 years old, would let me get cheek and jaw reconstructive surgery? Nah. I always used to love my jaw – I never was self-conscious about my jaw.'

And of her nose she added: 'I didn’t get a nose job. I’ve always had a cute nose. I’ve really always liked my nose.'

Kylie has previously admitted using fillers to plump up her lips - something she at first denied. The Keeping Up With the Kardashians star - who is dating rapper Tyga - was just 16 when she had injections to give her fuller lips.

She told complex magazine earlier this year: 'It has been an insecurity of mine all my life. 'This guy I kissed [in middle school] was like, "Your lips are really small but you're a really good kisser. I didn't think you were gonna be good at kissing."

'It was so rude. From then on, I just felt like I saw guys staring at my lips. I felt like no one wanted to kiss me.' But Kylie admitted: 'I went too far. It was very painful.'

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