With the rate they are going, these two might want to slow down a bit. There's a new rumor that suggests rapper Tyga is so desperate to make things official with his girlfriend Kylie Jenner that he's waiting until her 18th birthday this summer so he can finally marry her.

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According to OK! Magazine on Friday, Tyga and Kylie might want to think twice about their future plans, but right now it looks like nothing is stopping them. A source told the site that Kylie is ready to take the plunge "as soon as she turns 18 in August."

What's more, the couple is supposedly already engaged, with Tyga managing to pop the question while keeping their engagement under the radar.

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"Kylie accepted Tyga's proposal a few weeks ago and made the announcement to her family," says a family insider.

Also, given how public the Jenner and Kardashian family loves to be about their personal affairs, Kylie supposedly can't wait to proclaim her love for Tyga from the rooftops. And while the report says that Kylie can't wait to be a young bride, she hasn't even publicly confirmed her relationship with Tyga yet.

The source explained, ""Kylie can't wait to go public. Their age difference and the taboo underage issue is not a deterrent for her anymore."