When we think of the most romantic summer couples, I think that William and Kate definitely tops the list. But their romance is one for keeps. They’ve already committed to living happily ever after.

But there are a few other summer romances celebrity watchers are keeping an eye on. Some of them have been really heavy and steamy…heating up the tabloids during what’s already a really hot summer.

1. Leonardo di Caprio and Blake Lively

These two have definitely been heating up summer, especialy being seen together biking around New York or going on a vacation getaway. their relationship has been speculated to be only lasting up to the summer. And there were even rumors Leo’s mom did not approve of the Gossip Girl star. But, it looks like the relationship is still moving forward.

2. Jennifer Aniston and Justin Theroux

Jen’s relationship had been quiet for sometime, until she started hooking up with Justin Theroux and now her lovelife is being watched and being reported in the tabloid’s all over again. The two have already moved in together, after only months of dating. And their much-publicized new home is really big news in the Hollywood press.

3. Kim Kardashian and Kris Humphries

Whether we love this Kardashian sister or not, their romance has been really all over the press, you can’t help but glance over a page or just simply tune to it on television. Their wedding had been grand and almost royal-like. How long will the marriage last, is anyone’s guess though.