Ashlee Simpson and Pete WentzThey say two's a company, three's a crowd...

And four's a ready-made family.

But is it really a case of double whammy for Ashlee Simpson and Pete Wentz?

Fresh juice from Hollywood is suggesting that Ash 'n' Pete, who announced the pregnancy of their first child in May, could in fact be expecting twins.

Tongues starting wagging after hip-hop artist Tyga, a close friend of Pete's, told E! Online: "They're having twins. They're really happy."

Now we have to say, there's been no official word from Ashlee's camp on this latest preggers twist just yet.

But if it turns out to be accurate, it's one helluva development.

First J.Lo, then Brangelina and now a Simpson as the latest recruit to the celebrity twins brigade?

It seems just too good to be true.