CW's genre-defining teens gone wild series Riverdale is back for its seventh and sadly final season, but it's not leaving us high and dry. Episode seven, titled 'Sex Education', is one of the series' sexiest episodes to date. But before we get to the wild sex fantasies that resulted in K.J. Apa sitting spread eagle in a chair in just his underwear, we need to understand what is going on in season seven of Riverdale.

K.J. Apa Shirtless In Underwear, Plus Gay Scenes, In Crazy New Riverdale Episode

So what is Riverdale about in 2023? For its final go around, the show is taking us back to the 50s as a nod to the original Archie comic on which Riverdale is based. Jughead (Cole Sprouse) has been mysteriously transported back in time, and is unsettled to realize that all of his friends embody these 1950s versions of themselves without a clue that they are in fact living in the past.

K.J. Apa Penis Bulge In Riverdale Sex Education Scene

So how are the creators of Riverdale going to get the conservative 1950s versions of the character to strip down? With their wild sex fantasies, of course! The gang all get turned on after attending sex ed, where they learn just enough about the birds and the bees to pique their curiosity. Kevin (Casey Cott) develops homosexual feelings for Clay (Karl Walcott), while Betty (Lili Reinhart) stays true to her comic book character by lusting after Archie (K.J. Apa).

In Kevin's fantasy, he gets to make out with Clay while in his underwear. Archie is also in his underwear, but we get much more of what he has to offer here than Kevin. K.J. Apa reveals his bulge while sitting in a chair spread eagle in just his underwear. Betty and Archie eye fork for a second before the camera pans down to showcase K.J. Apa's famous abs. They're all sweaty, which looks good to Betty.

Riverdale has taken us places we never thought a teen CW series would go, and we just hope that the remaining season seven episodes are as hot as episode three!

Sexy Riverdale Pics And GIFs From Season 7, Episode 3