Becomes less frequent in the later seasons, 5-8.
Frequent kissing heterosexual in the first couple of seasons.
A man is seen in the shower. No nudity is shown, but it is implied. As he walks out of the shower, he uses a towel to cover his private parts. Again, no nudity is shown.
Majority of the episodes have teenagers making out, but there is no graphic nudity.
Girls are shown in underwear, but no explicit shots.
Most sex scenes involve a couple kissing and stripping down to their underwear. But the scenes cut away before anything happens.
A man continues to kiss a young woman's neck against a tree after she repeatedly tells him to stop. Another young man interrupts this scene, thus preventing it from going any further
Couples are seen but they are covered up with no nudity and nothing happens.
Clothes are torn off due to the vampires' superhuman strength. Nudity is only implied.
Two vampires make out including tearing of a shirt and a dress and lots of slamming each other against walls at vampire speed. Neither one of them is hurt by this. There is no nudity and the scene is mild and brief. The detail shown is very brief. It is blurry because of the vampires super speed and a short scene.
In one episode there is a threesome between two women and a man implied. The scene involves a making out but we only see above the chest. The scene is not very long.
A man and a woman are seen lying naked in bed, with a sheet covering them.
A man walks out of a bathtub, naked, but he is covered and we only see from the chest and up as he walks out of the bathroom.
A couple instances of same sex kisses. But never any nudity. And only ever brief making out.
A woman is shown taking off a man's belt in a kissing scene but that is all.
Women and men are seen kissing and making out.
A man is shown kissing and running his hands down a woman's body, including above her underwear. The man is wearing a sheet around his waist and the woman is clothed. There is no nudity in this scene and it is brief.
A man has a scratch on his back as he makes out with a woman. This is due to her vampire strength and there is nothing past a few kisses
A man and a woman kiss, but another woman enters the room and the scene ends.