Just when you think This Is Us can't get any cuter, "The Pool" happens.

In the exclusive sneak peek below, Rebecca (Mandy Moore) is really feeling the heat with Kevin, Kate and Randall. You remember those hot summer days when you were a kid. What's Jack's (Milo Ventimiglia) big solution?

Sure, working air conditioning would be nice, but also…the pool! Yep, he strips down right there for their big day out. Where else is Kate going to debut her new Care Bear bikini?