Kylie Jenner Boyfriend Underwear PHOTOS: Tyga 'Crisp' Boxer Love Revenge Against Blac Chyna, 'Sexy & Happy' Relationship

Blac Chyna can throw around cyber shade all she wants - Kylie Jenner still wins the man!

And instead of (only) seeking online "revenge," the 17-year-old "Keeping Up With The Kardashians" beauty plans on hititng Chyna where it really hurts - the heart.

"Right now, the only way she can really get back at Blac Chyna is to show her how happy she is with Tyga," an alleged insider tells the popular gossip webloid HollywoodLife.com. "It frustrates her, but at the same time she knows being happy and positive is the best revenge."

Happiness is key, right?

Still, the former hip-hop video vixen still manages to get underneath Jenner's young skin:

"Kylie's trying hard to stay strong and not let it upset her, but it's tough," another snitch explains. "She's way more sensitive than she likes to admit. The things Blac and her friends say to her are very hurtful. They make her cry! But she'd never want Blac to know that." 

So, Jenner still likes to show-off her blossoming (and unfaultering) relationship with the "Faded" emcee. But how, exactly? By flaunting her booty in a pair of her boyfriend's sexy underwear!

Tyga has a new boxer collection called Crisp.

And on Thursday (June 11), Jenner sent a massive Snapchat "selfie" while donning a hip-hugging pair of the tight briefs:

(via HollywoodLife)

Obviously she puts "Crisp" on full display! Wonder if Chyna will clap back again THIS time, although she's now allegedly dating up-and-coming boxing champ, J'Leon Love.

Jenner rocks the male undies pretty well - do MstarsNews readers agree? Well, the Twitter world has mixed feelings about it...

@OceanLuvr75: "I don't care who's underwear Kylie Jenner is wearing! #overratedcelebrities."

@DrDrewlittle: "@KylieJenner I want to eat a pair of your underwear using chopsticks."

Sound-off in the comments section below!